{"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-be\/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-be\/collections\/ceylon-blue-sapphire-natural-unheated-sri-lankan-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-be\/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-be\/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-be\/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-be\/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-be\/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-be\/collections\/oval-sapphire-engagement-ready-loose-stones\"\u003eoval sapphires\u003c\/a\u003e, \u003ca href=\"\/en-be\/collections\/cushion-sapphires-vintage-style-loose-stones\"\u003ecushion sapphires\u003c\/a\u003e, or \u003ca href=\"\/en-be\/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-be\/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-be\/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-be\/collections\/peach-sapphire\"\u003epeach sapphire\u003c\/a\u003e to \u003ca href=\"\/en-be\/collections\/teal-sapphire-gemstones-unheated-blue-green-stones\"\u003eteal sapphire\u003c\/a\u003e to \u003ca href=\"\/en-be\/collections\/white-sapphire-gemstones-diamond-alternative-loose-stones\"\u003ewhite sapphire\u003c\/a\u003e. Browse the \u003ca href=\"\/en-be\/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-be\/collections\/blue-sapphire\"\u003eAll blue sapphires\u003c\/a\u003e · \u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-over-1-carat\"\u003eCeylon blue over 1 carat\u003c\/a\u003e · \u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-over-2-carats\"\u003eCeylon blue over 2 carats\u003c\/a\u003e · \u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-natural-unheated-sri-lankan-stones\"\u003eUnheated blue sapphires\u003c\/a\u003e · \u003ca href=\"\/en-be\/collections\/ceylon-blue-sapphire-natural-unheated-sri-lankan-stones\"\u003eAll Ceylon blue\u003c\/a\u003e · \u003ca href=\"\/en-be\/collections\/untreated-sapphires\"\u003eAll unheated sapphires\u003c\/a\u003e · \u003ca href=\"\/en-be\/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 ct blue sapphire, Round, \u003cstrong\u003eheat-treated\u003c\/strong\u003e, from \u003cstrong\u003eSri Lanka (Ceylon)\u003c\/strong\u003e. A practical accent and smaller centre — sized for earrings, three-stone side positions and pendants where a sub-carat round carries the Ceylon blue character in a compact, versatile format.\u003c\/p\u003e\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=\"\/en-be\/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\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the report to the stone:\u003c\/strong\u003e confirm its weight and measurements against the stone you receive, and keep the document with it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat treatment is disclosed\u003c\/strong\u003e — the standard route for this colour, not a mark against the stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is our own sourcing record\u003c\/strong\u003e (Sri Lanka \/ Ceylon), not a lab finding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSized for an accent or smaller centre.\u003c\/strong\u003e See it first via \u003cstrong\u003eTry Before You Buy\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\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=\"\/en-be\/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=\"\/en-be\/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=\"\/en-be\/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=\"\/en-be\/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\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with its report, packed in a gem sleeve.\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 ct blue sapphire, Round (approx. 5 mm), Flower Cut, \u003cstrong\u003eheat-treated\u003c\/strong\u003e, from \u003cstrong\u003eSri Lanka (Ceylon)\u003c\/strong\u003e, on \u003cstrong\u003eAGCL Report #M263600\u003c\/strong\u003e. At a calibrated 5 mm it drops into standard round settings for earrings, pendants and rings without custom fabrication.\u003c\/p\u003e\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=\"\/en-be\/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\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the report to the stone:\u003c\/strong\u003e confirm report #M263600, its weight and measurements against the stone you receive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat is disclosed\u003c\/strong\u003e on the report — the standard route, not a mark against the stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibrated 5 mm\u003c\/strong\u003e — fits standard round settings without custom work.\u003c\/li\u003e\n\u003cli\u003eSee it first via \u003cstrong\u003eTry Before You Buy\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\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=\"\/en-be\/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=\"\/en-be\/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=\"\/en-be\/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=\"\/en-be\/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=\"\/en-be\/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\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with AGCL Report #M263600, packed in a gem sleeve.\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":false}],"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-be\/collections\/ceylon-blue-sapphire-under-1-carat.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}