{"title":"Blue Sapphire Under 1 Carat from Ceylon","description":"\u003ch2\u003eNatural Ceylon Blue Sapphire Under 1 Carat — Sri Lanka Origin Loose Stones\u003c\/h2\u003e\n\n\u003cp\u003eNatural Ceylon blue sapphires under 1 carat are among the most sought-after entry points into fine sapphire collecting. Mined in Sri Lanka — the island historically known as Ceylon, and still the world's most prestigious sapphire origin — these stones carry the same geological pedigree as the great Kashmir and Burmese sapphires, at a fraction of the price.\u003c\/p\u003e\n\n\u003cp\u003eA sub-1-carat Ceylon blue sapphire typically ranges from 5mm to 6.5mm in diameter depending on cut, making it an ideal size for solitaire rings, three-stone settings, and sapphire stud earrings. At this carat weight, colour and clarity matter far more than size: a vivid, well-saturated stone at 0.7ct will outperform a pale, included 0.95ct in both beauty and long-term value.\u003c\/p\u003e\n\n\u003ch2\u003eWhat to Look for in a Ceylon Blue Sapphire Under 1 Carat\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eColour\u003c\/strong\u003e is the primary value driver. Ceylon blue sapphires are prized for their distinctly bright, medium-to-vivid blue — often described as cornflower blue — which holds its colour exceptionally well under both daylight and artificial light. Avoid stones that appear inky or very dark, as they lose colour depth in low light. Browse our full \u003ca href=\"\/en-ca\/collections\/blue-sapphire\"\u003eblue sapphire collection\u003c\/a\u003e to compare hues across the range.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTreatment status\u003c\/strong\u003e has a significant impact on price and collectibility at this size. Many sub-1-carat sapphires on the market have been heat-treated to enhance colour and clarity. We disclose treatment status on every product listing. For buyers who specifically want unheated stones, see our \u003ca href=\"\/en-ca\/collections\/untreated-blue-sapphires-unheated-ceylon-loose-stones\"\u003eunheated Ceylon blue sapphire collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCut quality\u003c\/strong\u003e is often underestimated by first-time buyers. A well-cut stone will appear larger and brighter than its carat weight suggests. We select for stones that are cut to maximise return of light, not to retain carat weight.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLab reports\u003c\/strong\u003e — for stones at this size, independent certification confirms what you're actually buying. Many of our sub-1-carat Ceylon blue sapphires ship with GIA or recognised laboratory reports. Have a question about a specific stone or its paperwork? Email \u003ca href=\"mailto:crescentgems@gmail.com\"\u003ecrescentgems@gmail.com\u003c\/a\u003e — we respond personally within one business day.\u003c\/p\u003e\n\n\u003ch2\u003eCeylon Blue Sapphire vs Other Origins at Under 1 Carat\u003c\/h2\u003e\n\n\u003cp\u003eSri Lanka produces sapphires with a characteristic bright, slightly violet-leaning blue that is distinct from other origins. \u003cstrong\u003eMadagascar sapphires\u003c\/strong\u003e are often similar in colour but carry less origin premium. \u003cstrong\u003eThai sapphires\u003c\/strong\u003e are usually darker and more heavily treated. \u003cstrong\u003eMontana sapphires\u003c\/strong\u003e produce a teal-to-green-blue that is a very different look entirely. For buyers where origin and traceability matter, Ceylon is the benchmark. Our stones are sourced directly through buying offices in Colombo, Beruwala, and Ratnapura. See our \u003ca href=\"\/en-ca\/pages\/ceylon-sapphire-origin-guide\"\u003eCeylon sapphire origin guide\u003c\/a\u003e for the full background.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy a Sub-1-Carat Sapphire?\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrice accessibility\u003c\/strong\u003e — fine colour in a 0.5–0.9ct Ceylon sapphire costs significantly less than equivalent quality at 1ct+, where prices jump sharply at the carat threshold. \u003cstrong\u003eSetting versatility\u003c\/strong\u003e — sub-1-carat stones work across solitaire, halo, three-stone, and side-stone settings without overwhelming smaller hands. \u003cstrong\u003eAvailability of unheated stones\u003c\/strong\u003e — unheated Ceylon sapphires are rarer at larger sizes; the sub-1-carat range offers more options for buyers who want natural colour without thermal treatment. For the full explanation of why treatment status matters, see our \u003ca href=\"\/en-ca\/pages\/heated-vs-unheated\"\u003eheated vs unheated guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eSize Up or Down from This Collection\u003c\/h2\u003e\n\n\u003cp\u003eIf you need a larger stone, browse our \u003ca href=\"\/en-ca\/collections\/ceylon-blue-sapphire-over-1-carat\"\u003eCeylon blue sapphire over 1 carat\u003c\/a\u003e collection, or for the finest investment-grade pieces our \u003ca href=\"\/en-ca\/collections\/ceylon-blue-sapphire-over-2-carats\"\u003eCeylon blue sapphire over 2 carats\u003c\/a\u003e collection. For the full Ceylon blue range in one place, see \u003ca href=\"\/en-ca\/collections\/ceylon-blue-sapphire-natural-unheated-sri-lankan-stones\"\u003eall Ceylon blue sapphires\u003c\/a\u003e. Looking for a specific cut? Browse \u003ca href=\"\/en-ca\/collections\/oval-sapphire-engagement-ready-loose-stones\"\u003eoval sapphires\u003c\/a\u003e, \u003ca href=\"\/en-ca\/collections\/cushion-sapphires-vintage-style-loose-stones\"\u003ecushion sapphires\u003c\/a\u003e, or \u003ca href=\"\/en-ca\/collections\/round-sapphires-calibrated-loose-stones\"\u003eround sapphires\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs a Ceylon blue sapphire under 1 carat good for an engagement ring?\u003c\/strong\u003e\u003cbr\u003eYes. A well-cut 0.7–0.9ct Ceylon blue sapphire is an excellent engagement stone. Sapphire ranks 9 on the Mohs hardness scale — second only to diamond — making it entirely suitable for everyday wear. See our \u003ca href=\"\/en-ca\/pages\/sapphire-engagement-ring-guide\"\u003esapphire engagement ring guide\u003c\/a\u003e for full guidance on choosing a stone and setting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the price range for Ceylon blue sapphires under 1 carat?\u003c\/strong\u003e\u003cbr\u003eHeated stones in good colour typically start from $150–$400 per carat at this size. Unheated stones in fine colour can reach $800–$2,000+ per carat even under 1ct. Every listing shows price per carat alongside the total price.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I know if a sapphire is really from Ceylon (Sri Lanka)?\u003c\/strong\u003e\u003cbr\u003eOrigin determination requires laboratory testing. GIA and other recognised labs can issue origin reports for sapphires. We source directly through our Sri Lanka network and carry lab reports confirming Ceylon origin on selected pieces. Email \u003ca href=\"mailto:crescentgems@gmail.com\"\u003ecrescentgems@gmail.com\u003c\/a\u003e with any questions about a specific stone's documentation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I try a stone before committing?\u003c\/strong\u003e\u003cbr\u003eYes — select stones are available through our \u003ca href=\"\/en-ca\/collections\/try-before-you-buy-loose-gemstone\"\u003eTry-On programme\u003c\/a\u003e, where you can see the stone in hand before making a final decision. All purchases include a 14-day return policy. Email us to ask which stones are currently Try-On eligible.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat other sapphire colours does Crescent Gems carry?\u003c\/strong\u003e\u003cbr\u003eWe carry the full sapphire spectrum — from \u003ca href=\"\/en-ca\/collections\/peach-sapphire\"\u003epeach sapphire\u003c\/a\u003e to \u003ca href=\"\/en-ca\/collections\/teal-sapphire-gemstones-unheated-blue-green-stones\"\u003eteal sapphire\u003c\/a\u003e to \u003ca href=\"\/en-ca\/collections\/white-sapphire-gemstones-diamond-alternative-loose-stones\"\u003ewhite sapphire\u003c\/a\u003e. Browse the \u003ca href=\"\/en-ca\/collections\/all-sapphire-gemstones\"\u003ecomplete sapphire collection\u003c\/a\u003e to explore every colour.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cp\u003e\u003cem\u003eRelated collections: \u003ca href=\"\/en-ca\/collections\/blue-sapphire\"\u003eAll blue sapphires\u003c\/a\u003e · \u003ca href=\"\/en-ca\/collections\/ceylon-blue-sapphire-over-1-carat\"\u003eCeylon blue over 1 carat\u003c\/a\u003e · \u003ca href=\"\/en-ca\/collections\/ceylon-blue-sapphire-over-2-carats\"\u003eCeylon blue over 2 carats\u003c\/a\u003e · \u003ca href=\"\/en-ca\/collections\/untreated-blue-sapphires-unheated-ceylon-loose-stones\"\u003eUnheated blue sapphires\u003c\/a\u003e · \u003ca href=\"\/en-ca\/collections\/ceylon-blue-sapphire-natural-unheated-sri-lankan-stones\"\u003eAll Ceylon blue\u003c\/a\u003e · \u003ca href=\"\/en-ca\/collections\/untreated-sapphires\"\u003eAll unheated sapphires\u003c\/a\u003e · \u003ca href=\"\/en-ca\/collections\/all-sapphire-gemstones\"\u003eAll sapphires\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"0-87-ct-round-6mm-blue-sapphire","title":"0.87 ct Natural Heated Blue Sapphire – Round Cut | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 0.87 carat blue sapphire in a round cut, from Sri Lanka (Ceylon), heat treated. At 0.87 carats in a round brilliant, this is a practical accent and smaller center stone — sized for earring applications, three-stone ring center positions, and pendants where a sub-1-carat round sapphire delivers the Ceylon blue character in a compact, versatile format. The round cut maximizes light return and saturation for the carat weight.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"https:\/\/crescentgems.com\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"Heat treatment is standard practice for the great majority of blue sapphire on the market, including fine Ceylon material, and it has been accepted trade-wide for generations. What matters is honest disclosure, and this stone's treatment is stated plainly. At 0.87 carats with a clean, well-cut round shape and genuinely intense Ceylon blue color, it's an easy stone to recommend for its price point.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eBlue is the color most people picture when they hear the word \"sapphire,\" and Ceylon (Sri Lankan) material has long set the benchmark for that color. Here is how this particular stone stacks up against that standard.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e An intense, saturated blue from Sri Lanka — the most classic and widely recognized sapphire color, with broad, enduring demand across every market.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e At 0.87 ct, this is a compact, accessible weight — well suited to earrings, accent stones, and smaller centerpieces rather than a large solitaire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated — a standard, widely accepted practice for blue sapphire that is disclosed honestly here and does not reduce the stone's desirability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Eye-clean, with no inclusions visible to the naked eye under normal viewing conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e This stone is offered without third-party laboratory certification — worth stating plainly so buyers can weigh it against the price.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e A classic, well-cut Ceylon blue in a practical, wearable size — solid everyday value rather than a rare showpiece.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eA few practical points worth considering before you buy this stone.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm the setting fit:\u003c\/strong\u003e At 5.96 x 5.92 x 3.50 mm, check this diameter against your intended setting or mounting before ordering, especially for earrings or a three-stone layout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment is standard:\u003c\/strong\u003e Heat treatment is normal for blue sapphire and is disclosed here — it is not a defect and requires no special care beyond normal handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo third-party certification:\u003c\/strong\u003e This stone is not accompanied by a GIA or other independent lab report. That helps keep the price accessible, but it also means the grading above reflects Crescent Gems' in-house assessment rather than an independent lab's — buyers who want third-party verification should factor that into their decision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the color in different light:\u003c\/strong\u003e Blue sapphire can shift subtly between daylight and indoor lighting — view the stone, or its video, under more than one light source if possible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTry Before You Buy:\u003c\/strong\u003e Take advantage of Crescent Gems' try-on program to see this sapphire in person before committing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/blue-sapphire-buyers-guide\"\u003eBlue Sapphire — The Complete Buyer's Guide to Color, Origin, and Value\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/how-sapphire-heat-treatment-works\"\u003eHow Sapphire Heat Treatment Works — Temperature, Process, and What Changes Inside the Stone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Sapphire Rings — The Complete Guide to Designing Your Own\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eThe Ultimate Guide to Buying Natural Loose Sapphires\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8315\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e0.87 ct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eSpecies \/ Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Blue Sapphire (Corundum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eShape \/ Cut\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eRound, Portuguese cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e5.96 x 5.92 x 3.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eColor \/ Intensity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eBlue, Intense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eHeated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka (Ceylon)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eEye-clean\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 (Mohs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600;\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this 0.87 ct Round Ceylon Blue Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eRound Ceylon blue sapphire at 0.87 carats is a practical size for earring center stones, three-stone ring configurations, and smaller pendant designs where the budget or the design calls for a sub-1-carat sapphire without compromising the Ceylon blue quality. The round brilliant format ensures maximum color display for the weight.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this Natural Blue Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeylon Blue Origin\u003c\/strong\u003e\u003cbr\u003eSri Lanka — the benchmark source for vivid, transparent blue sapphire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound Brilliant Versatility\u003c\/strong\u003e\u003cbr\u003eThe format that fits the widest range of settings — earrings, pendants, three-stone rings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessible Sub-1-Carat Weight\u003c\/strong\u003e\u003cbr\u003eThe size that makes Ceylon blue sapphire accessible for earrings and accent applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Light Return\u003c\/strong\u003e\u003cbr\u003eRound brilliant cut returns more light than any other shape for this color.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable for Daily Wear\u003c\/strong\u003e\u003cbr\u003eCorundum at Mohs 9, second only to diamond.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCarat Weight: 0.87 Carats\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Blue Sapphire\u003c\/li\u003e\n\u003cli\u003eCut: Round\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon)\u003c\/li\u003e\n\u003cli\u003eTreatment: Heat Treated\u003c\/li\u003e\n\u003cli\u003eColor: Blue\u003c\/li\u003e\n\u003cli\u003eClarity: Eye-clean — no visible inclusions under normal viewing\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis 0.87 ct round Ceylon blue sapphire has been hand-selected for the vividness of its blue and the quality of its round cut — the Ceylon blue character in a compact, versatile format.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Customers Love This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeylon Quality at Sub-1-Carat:\u003c\/strong\u003e The benchmark blue in an accessible weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound Compatibility:\u003c\/strong\u003e Fits any earring, pendant, or three-stone setting without custom work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily Wear Durability:\u003c\/strong\u003e Mohs 9 — appropriate for any daily jewelry application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Source:\u003c\/strong\u003e Treatment disclosed honestly, Ceylon origin confirmed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOwning this 0.87 ct round Ceylon blue sapphire means choosing the most recognized sapphire quality in a practical, versatile format.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 0.87 ct Blue Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eEarring center stones (pair)\u003c\/li\u003e\n\u003cli\u003eThree-stone ring center stone\u003c\/li\u003e\n\u003cli\u003ePendant solitaire\u003c\/li\u003e\n\u003cli\u003eSeptember birthstone jewelry\u003c\/li\u003e\n\u003cli\u003eAccent stone in custom multi-stone design\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42887343210563,"sku":"CG8315","price":1044.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_1f1108ea-2329-42c2-91a1-c30995baae2f.jpg?v=1778352737"},{"product_id":"0-64-ct-round-ceylon-blue-sapphire","title":"0.64 ct Natural Heated Blue Sapphire – Round (approximately 5mm) Cut | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 0.64 carat blue sapphire in a round shape with Flower Cut faceting, from Sri Lanka (Ceylon), heat treated and certified by AGCL (Arctic Gem Certification \u0026amp; Laboratory), Report #M263600. At approximately 5mm in diameter, this round Ceylon blue sapphire is a calibrated format — the 5mm size fits a standard range of round settings in earring, pendant, and ring applications without custom fabrication. Ceylon origin adds the documented quality associated with Sri Lanka's fine sapphire production, and the Flower Cut faceting delivers vivid blue display for this carat weight.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"https:\/\/crescentgems.com\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"Ceylon blue at this size is exactly what earring and pendant buyers should be looking for — the color is unmistakably vivid, and the Flower Cut faceting makes it read larger than 0.64 carats face-up. Heat treatment here is standard practice for the trade and fully disclosed on the AGCL report, so what you're paying for is genuine Ceylon color and cut quality, not a treatment premium.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eCeylon blue sapphire is one of the most recognized gemstone colors in the world, but not every stone marketed as \"Ceylon blue\" shares the same combination of color, cut, and documentation. Here's how this 0.64 ct stone stacks up.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e classic Ceylon blue, the most recognized sapphire color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e at 0.64 ct this is a compact accent\/small-centerpiece size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e heated — standard, disclosed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Eye-clean\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e AGCL Report #M263600 confirms species, carat weight, and heat treatment; Sri Lanka (Ceylon) origin is stated by Crescent Gems as part of the listing rather than a separate origin-only lab finding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e genuine Ceylon color, a faceting style built for brightness, and full treatment disclosure combine to make this a well-documented, honestly represented stone at an accessible price point\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eA few things to weigh before adding this stone to your cart:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetting Compatibility:\u003c\/strong\u003e the calibrated ~5mm round diameter fits standard round settings without custom sizing, simplifying ring, pendant, or earring fabrication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePairing for Earrings:\u003c\/strong\u003e if you need a matching pair, contact Crescent Gems before purchase to check for a closely matched second stone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment Disclosure:\u003c\/strong\u003e this stone is heat treated, a widely accepted and industry-standard practice for sapphires that improves color and clarity — always confirm treatment status on any sapphire you're comparing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation Review:\u003c\/strong\u003e request or review AGCL Report #M263600 before purchase to confirm carat weight, dimensions, and treatment match the listing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTry Before You Buy:\u003c\/strong\u003e Crescent Gems offers a 14-day return window from delivery, so you can view the stone in hand before committing it to a finished piece\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/natural-sapphires-online-premium-gemstones\"\u003eHow to Buy Natural Sapphires Online: What to Check, What to Avoid, and What Certification Actually Tells You\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eHow to Commission a Custom Ring — From Loose Stone to Finished Piece\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eThe Ultimate Guide to Buying Natural Loose Sapphires\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/blue-sapphire-buyers-guide\"\u003eBlue Sapphire — The Complete Buyer's Guide to Color, Origin, and Value\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/how-sapphire-heat-treatment-works\"\u003eHow Sapphire Heat Treatment Works — Temperature, Process, and What Changes Inside the Stone\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8421\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e0.64 ct\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eSpecies \/ Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Blue Sapphire (Corundum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eShape \/ Cut\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eRound, Flower Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e4.98 x 4.96 x 3.43 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eColor \/ Intensity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eBlue, Ceylon Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eHeated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka (Ceylon) — as stated on the listing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eEye-clean\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 (Mohs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600;\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eAGCL Report #M263600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this 0.64 ct Round Ceylon Blue Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eCeylon blue sapphire at 0.64 carats in a calibrated round is the most practical format for earring center stones and small pendant solitaires that require a vivid blue sapphire with documented origin. The Flower Cut faceting maximizes color display for the weight, and the ~5mm calibrated diameter eliminates the sizing and fitting steps that uncalibrated stones require in production.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this Natural Blue Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeylon Origin\u003c\/strong\u003e\u003cbr\u003eSri Lanka — the benchmark source for vivid blue sapphire at the commercial level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrated ~5mm Format\u003c\/strong\u003e\u003cbr\u003eConsistent diameter for drop-in use in standard round solitaire earring and pendant settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlower Cut Sparkle\u003c\/strong\u003e\u003cbr\u003eMaximum light return for this carat weight from the flower-pattern faceting — vivid Ceylon blue face-up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEarring and Pendant Scale\u003c\/strong\u003e\u003cbr\u003e0.64 carats — the right weight for earring center stones and small pendant solitaires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable for Daily Wear\u003c\/strong\u003e\u003cbr\u003eCorundum at Mohs 9, second only to diamond.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCarat Weight: 0.64 Carats\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Blue Sapphire\u003c\/li\u003e\n\u003cli\u003eVariety: Blue Sapphire\u003c\/li\u003e\n\u003cli\u003eShape: Round\u003c\/li\u003e\n\u003cli\u003eCut Style: Flower Cut\u003c\/li\u003e\n\u003cli\u003eDimensions: 4.98 x 4.96 x 3.43 mm\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon)\u003c\/li\u003e\n\u003cli\u003eTreatment: Heat Treated\u003c\/li\u003e\n\u003cli\u003eColor: Blue (Ceylon Blue)\u003c\/li\u003e\n\u003cli\u003eClarity: Eye-clean — no visible inclusions under normal viewing\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003cli\u003eCertification: AGCL Gemstone Report #M263600\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis 0.64 ct round Ceylon blue sapphire has been hand-selected for the vividness of its blue — the quality that delivers consistent Ceylon character in earring and pendant applications.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eOne of a Kind\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThis is a single natural gemstone, not a manufactured or lab-created replica — no two sapphires form with identical color, clarity, and internal character. Once this stone sells, it's gone; there is no duplicate. What you see documented on the AGCL report is the exact, individual stone you receive.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCare\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eSapphire is exceptionally durable (Mohs 9), but a few habits keep it looking its best. Clean with warm water, mild soap, and a soft brush; avoid ultrasonic or steam cleaners if the stone is set alongside softer or treatment-sensitive materials. Store separately from other jewelry to prevent surface scratches to softer pieces, and remove the stone before swimming, exercising, or household chemical exposure. Heat-treated color is stable under normal wear, but avoid sudden extreme temperature changes and prolonged direct heat.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Customers Love This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeylon Blue Quality:\u003c\/strong\u003e The benchmark blue at an earring-friendly weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrated Round:\u003c\/strong\u003e Fits standard ~5mm settings without adjustment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaily Wear Durability:\u003c\/strong\u003e Mohs 9 — appropriate for all jewelry types.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Source:\u003c\/strong\u003e Ceylon origin confirmed, treatment disclosed honestly, and independently certified by AGCL (Report #M263600).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eOwning this 0.64 ct round Ceylon blue sapphire means choosing the most recognized sapphire quality in a calibrated earring and pendant format.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 0.64 ct Blue Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eSolitaire stud earrings (pair)\u003c\/li\u003e\n\u003cli\u003eSmall pendant solitaire\u003c\/li\u003e\n\u003cli\u003eThree-stone ring center stone\u003c\/li\u003e\n\u003cli\u003eSeptember birthstone jewelry\u003c\/li\u003e\n\u003cli\u003eAccent stone in custom multi-stone design\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43039028052035,"sku":"CG8421","price":640.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_aae45fce-218e-4d40-9001-3bf15e0a9b3f.jpg?v=1777536708"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/collections\/8458001.jpg?v=1784371249","url":"https:\/\/crescentgems.com\/en-ca\/collections\/ceylon-blue-sapphire-under-1-carat.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}