{"product_id":"gia-certified-2-62-carat-oval-green-alexandrite-diamond-platinum-vintage-ring","title":"GIA Certified 2.62 Carat Oval Green Alexandrite \u0026 Diamond Platinum Vintage Ring","description":"\u003cdiv\u003eGIA Certified 2.62 carat oval cut natural green alexandrite measuring 8.6 x 7.5mm is set in a four-prong platinum 900 mounting flanked by stepped baguette diamond clusters on each shoulder, totaling approximately 0.10 carats across 6 diamonds in this elegant vintage-style ring. Size 5.75, adjustable.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eItem Type: Vintage-Style Cocktail \/ Engagement Ring\u003c\/li\u003e\n\u003cli\u003eMetal: Platinum 900 (PT900) — stamped \"PT\" as visible on shank\u003c\/li\u003e\n\u003cli\u003eShank Style: Polished plain shank with split baguette shoulder gallery\u003c\/li\u003e\n\u003cli\u003eSize: 5.75 (adjustable)\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 3.94 grams\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong\u003eCenter Stone Details:\u003c\/strong\u003e\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eGemstone: Natural Alexandrite\u003c\/li\u003e\n\u003cli\u003eCarat: 2.62\u003c\/li\u003e\n\u003cli\u003eCut: Oval Brilliant\u003c\/li\u003e\n\u003cli\u003eColor: Yellowish Green changing to Purplish Brown\u003c\/li\u003e\n\u003cli\u003eSetting: Four-prong platinum basket\u003c\/li\u003e\n\u003cli\u003eGIA Certified: 5231976175\u003c\/li\u003e\n\u003cli\u003eMeasurements: 8.67 x 7.68 x 4.44 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong\u003eAccent Stone Details:\u003c\/strong\u003e\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eType: Diamond\u003c\/li\u003e\n\u003cli\u003eCut: Straight baguette\u003c\/li\u003e\n\u003cli\u003eTotal Carat Weight: approximately 0.10 carats\u003c\/li\u003e\n\u003cli\u003eQuantity: 6 stones (3 per shoulder, stepped\/fanned arrangement)\u003c\/li\u003e\n\u003cli\u003eSetting: Channel\/prong stepped fan clusters on each shoulder\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong\u003eAbout The Setting\u003c\/strong\u003e\u003c\/div\u003e\u003cdiv\u003eThe platinum 900 mounting features a clean, high-polish plain shank that transitions into a sculptural split gallery on each shoulder, where three stepped baguette diamonds are arranged in a fanned formation that widens toward the center stone — a design detail reminiscent of mid-century Japanese platinum craftsmanship at its most refined. The four-prong basket holds the alexandrite securely while leaving the maximum stone surface open to light, preserving the gem's celebrated color-change phenomenon from every viewing angle. The \"Pt\" hallmark is cleanly stamped on the inner shank, confirming the platinum composition and adding provenance and collectability to the piece.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cstrong\u003eAbout The Stone\u003c\/strong\u003e\u003c\/div\u003e\u003cdiv\u003eThis 2.62 carat natural alexandrite is among the rarest and most scientifically fascinating gemstones in the world — a chrysoberyl variety that shifts color depending on the light source, typically displaying green to yellow-green tones in daylight and shifting toward warmer olive, brownish, or reddish tones under incandescent light. At 8.6 x 7.5mm, this oval stone has a commanding face-up presence that is highly unusual for alexandrite, as fine specimens above 2 carats are extraordinarily scarce in the global gem market. Natural alexandrite of this size commands premium pricing not only for its beauty but for its genuine rarity — fine alexandrite consistently outpaces many diamond equivalents in per-carat value at auction. The 6 baguette diamond accents totaling approximately 0.10 carats provide a crisp, colorless architectural frame that enhances the alexandrite's rich green tones without competing with the center stone's extraordinary color story.\u003c\/div\u003e","brand":"ASSAY","offers":[{"title":"Default Title","offer_id":47712455524542,"sku":"POTC2575R","price":2327900.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0508\/5724\/6910\/files\/GIA-Certified-2_62-Carat-Oval-Green-Alexandrite-Diamond-Platinum-Vintage-Ring-Ring.jpg?v=1782338403","url":"https:\/\/jp.assayjewelers.com\/products\/gia-certified-2-62-carat-oval-green-alexandrite-diamond-platinum-vintage-ring","provider":"ASSAY","version":"1.0","type":"link"}