{"title":"Natural Cat's Eye Chrysoberyl - Chatoyancy Phenomenon Stones","description":"\u003cp\u003eNatural cat's eye chrysoberyl is a phenomenon gemstone displaying chatoyancy - a sharp single band of light that moves smoothly across the surface of a cabochon-cut stone as it rotates under light. The effect mimics the vertical slit pupil of a cat's eye in headlights. Fine cat's eye chrysoberyl is one of the rarest phenomenon gemstones in the world and has been prized for centuries, particularly in South Asia where it carries deep cultural significance. For the broader chrysoberyl family including faceted stones, see our \u003ca href=\"\/en-ca\/collections\/natural-chrysoberyl-loose-stones-sri-lanka\"\u003echrysoberyl collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Our Natural Cat's Eye Chrysoberyl\u003c\/h2\u003e\n\n\u003cp\u003eOur cat's eye chrysoberyls are sourced primarily from Sri Lanka, one of the world's leading sources. Every stone is \u003cstrong\u003enatural and untreated\u003c\/strong\u003e - chrysoberyl rarely requires any enhancement. We hand-select for eye sharpness, body colour, and the milk-and-honey effect that distinguishes a great cat's eye from an ordinary one. Premium pieces ship with \u003cstrong\u003eGIA reports\u003c\/strong\u003e. Select pieces are eligible for our \u003ca href=\"\/en-ca\/collections\/try-before-you-buy-loose-gemstone\"\u003eTry-On programme\u003c\/a\u003e - the chatoyancy phenomenon genuinely must be seen under direct light to be properly evaluated. For why Sri Lanka is the premier source, see our \u003ca href=\"\/en-ca\/pages\/ceylon-sapphire-origin-guide\"\u003eCeylon sapphire origin guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eHow to Choose a Cat's Eye Chrysoberyl\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eEye sharpness.\u003c\/strong\u003e The most prized cat's eyes show a tight, sharp, well-centred line of light that moves smoothly across the dome as the stone rotates. A fuzzy or off-centre eye significantly reduces value. \u003cstrong\u003eMilk and honey effect.\u003c\/strong\u003e Under directional light, one half of the dome appears creamy white (the milk) while the other glows golden (the honey). The stronger and more distinct this contrast, the finer the stone. \u003cstrong\u003eBody colour.\u003c\/strong\u003e The finest Ceylon cat's eyes show a vivid golden-green to honey-yellow body. Pale or brownish body colours are less prized. \u003cstrong\u003eTransparency.\u003c\/strong\u003e Translucent to semi-translucent cabochons with depth are more desirable than opaque ones.\u003c\/p\u003e\n\n\u003ch2\u003eCollector and Jyotish Significance\u003c\/h2\u003e\n\n\u003cp\u003eCat's eye chrysoberyl (Lahsuniya) is the prescribed gemstone for Ketu in Jyotish (Vedic astrology). Requirements are strict: natural chrysoberyl only, untreated, with a sharp and well-centred eye, in gold or silver setting with skin contact. See our \u003ca href=\"\/en-ca\/blogs\/information-pages-complete-guide\/buying-sapphires-for-jyotish-vedic-astrology\"\u003eJyotish gemstone guide\u003c\/a\u003e for the full specification context. For collector buyers, fine cat's eye chrysoberyl above 5 carats with a sharp eye and vivid body colour is genuinely scarce - see our \u003ca href=\"\/en-ca\/collections\/collectors-and-investment-gemstones\"\u003einvestment gemstones collection\u003c\/a\u003e for the broader collector context.\u003c\/p\u003e\n\n\u003cp\u003eEmail \u003ca href=\"mailto:crescentgems@gmail.com\"\u003ecrescentgems@gmail.com\u003c\/a\u003e for sourcing to specification. 14-day return. Free US shipping.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eRelated: \u003ca href=\"\/en-ca\/collections\/natural-chrysoberyl-loose-stones-sri-lanka\"\u003eFaceted chrysoberyl\u003c\/a\u003e - \u003ca href=\"\/en-ca\/collections\/alexandrite-gemstones-the-color-change-chrysoberyl\"\u003eAlexandrite\u003c\/a\u003e - \u003ca href=\"\/en-ca\/collections\/natural-star-sapphires-six-ray-asterism-unheated-ceylon\"\u003eStar sapphires\u003c\/a\u003e - \u003ca href=\"\/en-ca\/collections\/collectors-and-investment-gemstones\"\u003eInvestment gemstones\u003c\/a\u003e - \u003ca href=\"\/en-ca\/collections\/tsavorite-garnet-gemstones-emerald-alternative\"\u003eTsavorite garnet\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":"2-36-ct-chrysoberyl-cats-eye-unheated","title":"2.36 ct Natural Unheated Cat's Eye Chrysoberyl – Oval Shape, Cabochon Cut | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eThis 2.36 carat natural Chrysoberyl cat's eye, oval cabochon, shows a sharp, well-defined chatoyant band — a line of light that moves across the dome of the stone as the viewing angle changes. The effect is caused by fine parallel fibrous inclusions oriented through the crystal, and the quality of the band directly defines the stone's value. This specimen is untreated, confirmed by GIA Report #2243017776, with a warm honey-yellow body color. Chrysoberyl ranks 8.5 on the Mohs scale, making it one of the most durable gem species for jewelry use.\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\"What stands out on this stone is how sharp and centered the eye stays as you rotate it — a lot of cat's eye chrysoberyl shows a soft or off-center band, but this 2.36 ct oval cabochon holds a single crisp line across the dome, and GIA Report #2243017776 confirms it's untreated.\"\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\u003eA few factors combine to make this particular cat's eye chrysoberyl an uncommon find:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e A warm honey-yellow body color with medium saturation — an even, appealing tone for the variety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 2.36 carats is a substantial size for a cat's eye chrysoberyl cabochon that still shows a tight, well-controlled dome.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Untreated — no heat treatment of any kind, which is the standard expectation for fine chrysoberyl but still worth confirming on paper.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenomenon:\u003c\/strong\u003e The chatoyant band is sharp and well-defined rather than diffuse, which is the single biggest driver of value in cat's eye stones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Backed by GIA Report #2243017776, confirming species, untreated status, weight, and phenomenon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e A larger, untreated cat's eye chrysoberyl with a sharp band and independent GIA documentation is a genuinely uncommon combination in the market.\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 to weigh before purchasing this specific stone:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the band under a single light source.\u003c\/strong\u003e Cat's eye chrysoberyl reads best under one direct light (sunlight or a single bulb) rather than diffuse lighting — rotate the stone to see the band travel across the dome.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan the setting around the cabochon's dome height.\u003c\/strong\u003e At 8.79 x 8.24 x 3.38 mm, this oval cabochon needs a bezel or prong setting with enough depth to seat the dome without hiding the girdle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm the GIA report matches the stone.\u003c\/strong\u003e When comparison shopping, make sure any cat's eye chrysoberyl you're considering comes with a report number you can verify against the physical stone, not just a generic lab mention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh availability against size and quality.\u003c\/strong\u003e As noted in the Rarity Analysis, untreated cat's eye chrysoberyl of this size with a sharp band is not something you'll find in multiple comparable listings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand before finalizing the purchase.\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\/cats-eye-chrysoberyl-buyers-guide\"\u003eCat's Eye Chrysoberyl Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\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 Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/how-gems-are-formed-nature-s-incredible-underground-process\"\u003eHow Gemstones Are Formed\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/art-of-pit-mining-gemstones-sri-lanka\"\u003ePit Mining Gemstones in Sri Lanka\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/alexandrite-buyers-guide\"\u003eAlexandrite Buyer's Guide\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;\"\u003eCG8245\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;\"\u003e2.36 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;\"\u003eChrysoberyl \/ Cat's Eye Chrysoberyl\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;\"\u003eOval \/ Cabochon\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;\"\u003e8.79 x 8.24 x 3.38 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;\"\u003eYellow (Honey Yellow), Medium saturation\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;\"\u003eChatoyancy (cat's eye effect)\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;\"\u003eNone — untreated\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) (store's own assessment; not addressed by the GIA report)\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;\"\u003eNot Applicable (cabochon-cut phenomenon stone)\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;\"\u003e8.5 (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;\"\u003eGIA (Gemological Institute of America) Report #2243017776\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eCarat Weight: 2.36 Carats\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Cat's Eye Chrysoberyl\u003c\/li\u003e\n\u003cli\u003eShape: Oval\u003c\/li\u003e\n\u003cli\u003eCut: Cabochon\u003c\/li\u003e\n\u003cli\u003eTreatment: None — untreated\u003c\/li\u003e\n\u003cli\u003eColor: Yellow\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Chatoyancy (cat's eye effect)\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Report #2243017776\u003c\/li\u003e\n\u003cli\u003eHardness: 8.5 on the Mohs scale\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eCare of Chrysoberyl cats eye\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eClean with lukewarm water and mild soap using a soft brush\u003c\/li\u003e\n\u003cli\u003eStore separately to avoid surface contact\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGIA Report #2243017776\u003c\/li\u003e\n\u003cli\u003eGemstone packed in a gem sleeve\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42774382379075,"sku":"CG8245","price":3792.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/Cats_Eye.jpg?v=1778308033"},{"product_id":"4-31-ct-chrysoberyl-cats-eye-gia","title":"4.25 ct Natural Untreated Cat's Eye Chrysoberyl – Oval Cabochon | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 4.25 carat Oval Cat's Eye Chrysoberyl cabochon, completely untreated and now GIA certified (Report #6247017765). Cat's eye chrysoberyl is the most prized chatoyant gemstone — a phenomenon stone that displays a sharp, single band of light (the cat's eye) that glides across the dome of the cabochon as the stone is rotated. At 4.25 carats, this is a collector-grade specimen: cat's eye chrysoberyl above 3 carats with a sharp, well-defined eye represents the premium tier of this phenomenon category. Chrysoberyl ranks 8.5 on the Mohs scale — harder than most gem species outside the corundum family.\u003c\/p\u003e\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\"What stands out on this 4.25 ct chrysoberyl is the sharpness of the eye against a silver band — that crispness, combined with a completely untreated, GIA-confirmed origin story, is what puts a cat's eye in the collector-grade tier rather than the commercial one.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eA handful of factors combine to make this specific chrysoberyl an uncommon find, even within the cat's eye category:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e A greenish yellow body color of medium saturation, paired with a sharp silver eye — a distinct combination noted in the stone's own color record.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e At 4.25 carats, this stone sits above the 3-carat threshold the listing itself identifies as the point where sharp-eyed cat's eye chrysoberyl becomes collector-grade material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Completely untreated (\"No Enhancement\"), which is the natural state for the finest cat's eye chrysoberyl and is not something every stone on the market can claim.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenomenon:\u003c\/strong\u003e Displays true chatoyancy — a single, sharp band of light that glides across the dome as the stone is rotated, rather than a diffuse or poorly-centered eye.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e Backed by a GIA Cat's Eye Chrysoberyl Report (#6247017765) confirming species and phenomenon; the Sri Lanka (Ceylon) origin is the store's own assessment and is not covered by that report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e A sharp-eyed, untreated, GIA-documented cat's eye chrysoberyl over 4 carats is genuinely uncommon — most material seen on the market is smaller, treated, or shows a softer, less centered eye.\u003c\/li\u003e\n\u003c\/ul\u003e\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 to weigh before purchasing this specific stone:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eView it under a single direct light source,\u003c\/strong\u003e such as a flashlight or spotlight, to see the sharp band glide across the dome — diffuse or multi-directional lighting will mute the effect.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan the setting around the cabochon's dome.\u003c\/strong\u003e At 9.63 x 7.55 x 5.41 mm, this is a moderately domed oval cabochon, so a bezel or protective prong setting that leaves the dome unobstructed will show the eye best.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsk any seller for the GIA report number\u003c\/strong\u003e when comparison-shopping cat's eye chrysoberyl, and confirm whether the stone is disclosed as untreated — not all cat's eye material sold online carries that disclosure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability is limited to this single piece.\u003c\/strong\u003e As a natural cabochon, this stone is one of a kind by nature, and the combination of size, sharp eye, and untreated status described above is not something that can be reordered.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand before finalizing the purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\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\/cats-eye-chrysoberyl-buyers-guide\"\u003eCat's Eye Chrysoberyl Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/alexandrite-buyers-guide\"\u003eAlexandrite Guide (Color-Change Chrysoberyl)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/how-gems-are-formed-nature-s-incredible-underground-process\"\u003eHow Gemstones Are Formed\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\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 Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\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;\"\u003eCG8442\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;\"\u003e4.25 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;\"\u003eChrysoberyl, Cat's-Eye variety\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;\"\u003eOval Cabochon\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;\"\u003e9.63 x 7.55 x 5.41 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;\"\u003eGreenish Yellow, Medium saturation\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;\"\u003eChatoyancy (Cat's-Eye), sharp silver eye\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;\"\u003eUntreated (No Enhancement)\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) — store assessment, not covered by GIA report\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;\"\u003e8.5 (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;\"\u003eGIA Report #6247017765\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy the Cat's Eye Effect Happens\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCat's eye chrysoberyl's chatoyancy phenomenon is caused by microscopic parallel needle-like inclusions aligned within the crystal — light reflects off these needles as a single sharp band. The finest examples show a strong, well-defined eye and a \"milk and honey\" effect: when illuminated from one side, half the dome appears lighter and half darker, divided by the moving band of the eye.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures of this Cat's Eye Chrysoberyl\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: CG8442\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 4.25 carats\u003c\/li\u003e\n\u003cli\u003eDimensions: 9.63 × 7.55 × 5.41 mm\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Chrysoberyl, Cat's-Eye variety\u003c\/li\u003e\n\u003cli\u003eCut: Oval Cabochon\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon) — store assessment, not covered by this GIA report\u003c\/li\u003e\n\u003cli\u003eTreatment: Untreated\u003c\/li\u003e\n\u003cli\u003eColor: Greenish Yellow\u003c\/li\u003e\n\u003cli\u003ePhenomenon: Displaying Chatoyancy — a sharp band of light moving across the dome\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003cli\u003eClarity: Eye Clean\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Cat's Eye Chrysoberyl Report #6247017765\u003c\/li\u003e\n\u003cli\u003eHardness: 8.5 on the Mohs scale\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis 4.25 ct Oval Cat's Eye Chrysoberyl has been hand-selected as a collector-grade specimen — sharpness of the eye, quality of the chatoyancy effect, and size all meet the criteria for the premium tier of this phenomenon category.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCare\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClean with lukewarm water and mild soap using a soft brush\u003c\/li\u003e\n\u003cli\u003eStore separately to avoid surface contact\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners, which can affect the cabochon's polish and chatoyant effect\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGIA Cat's Eye Chrysoberyl Report #6247017765\u003c\/li\u003e\n\u003cli\u003eGemstone packed in a gem sleeve\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43232607273027,"sku":"CG8442","price":9482.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/stone_CG8442_image-1.jpg?v=1780471047"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/collections\/Cats_Eye-1779275965.jpg?v=1781260302","url":"https:\/\/crescentgems.com\/en-ca\/collections\/natural-cats-eye-chrysoberyl-chatoyancy-stones.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}