{"product_id":"23-01ct-unheated-ceylon-sapphire-diamond-ring","title":"23.01ct Unheated Ceylon Sapphire Diamond Ring","description":"\u003cdiv\u003eCarat Weight: 23.01 ct. Sapphire\u003c\/div\u003e\u003cdiv\u003eColor\/Clarity: Ceylon No Heat Sapphire, 202 Diamonds = 5.50cts E-G VS (2 GIA)\u003c\/div\u003e\u003cdiv\u003eCertifications: Gubelin and GIA\u003c\/div\u003e\u003cdiv\u003eSize: 6\u003c\/div\u003e\u003cdiv\u003eCreator: Spectra Fine Jewelry\u003c\/div\u003e\u003cdiv\u003eMetal: 18K White Gold\u003c\/div\u003e\u003cdiv\u003eWeight: 17.76 gr.\u003c\/div\u003e\u003cdiv\u003ePeriod: 2026\u003c\/div\u003e\u003cdiv\u003eCondition: New\/Excellent\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eDesigned and handcrafted by Spectra Fine Jewelry, this extraordinary high-jewelry ring is centered on an exceptional 23.01-carat cushion-shaped sapphire of Ceylon provenance. Accompanied by documentation from the Gubelin Gem Lab, the sapphire has earned an impressive Gemstone Rating of 91.2 Points (\"Outstanding\") and is further distinguished by a rare Gubelin Appendix recognizing its exceptional quality and rarity. The report confirms the absence of thermal treatment, preserving the richly saturated blue color bestowed entirely by nature.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eDisplaying remarkable scale and presence, the sapphire is fashioned with a sophisticated combination of brilliant and step-cut faceting that enhances both its depth of color and brilliance. Platinum double-claw prongs secure the gemstone within an architectural cluster mounting, framed by two prominent GIA-certified step-cut baguette diamonds at the shoulders and accented by alternating pairs of marquise and round brilliant-cut diamonds.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eThe side profile reveals an intricately crafted openwork undergallery pave-set with brilliant-cut diamonds, allowing light to enter the gemstone from multiple angles while showcasing the exceptional craftsmanship of the mounting. This elegant basket transitions into a split three-row pave-set shank that provides both visual balance and comfortable wear. Accompanied by its comprehensive international gemological portfolio, this one-of-a-kind Spectra Fine Jewelry creation represents an important acquisition for collectors of exceptional untreated sapphires.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eRef.:R1819\u003c\/div\u003e","brand":"Spectra Fine Jewelry","offers":[{"title":"Default Title","offer_id":48469463007491,"sku":"R1819","price":715500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0650\/9087\/9747\/files\/R1819-view1_3808893.jpg?v=1782310985","url":"https:\/\/www.spectrafinejewelry.com\/products\/23-01ct-unheated-ceylon-sapphire-diamond-ring","provider":"Spectra Fine Jewelry","version":"1.0","type":"link"}