2.71 Carat Cushion Cut Purple Sapphire and Diamond Ring in 18k White Gold

0.29 Carat Cushion cut Alexandrite and Diamond Ring in 18 Karat White Gold. This gorgeous ring features a 0.29 carat cushion cut alexandrite at its centre, surrounded by a halo of r...

This beautifully crafted ring has an Oval cut Tanzanite weighing approximately 4.01 Carats at its centre. Surrounded by Round Brilliant Diamonds weighing approximately 0.62 Carats, t...

9.2 Carat Amethyst and Diamond Ring in 18K White Gold This show-stopper features a magnificent 9.2 carat emerald-cut Amethyst at its centre. This luxurious stone emanates rich purpl...

This Elegant Ring consists of a Cushion Cut Alexandrite, a fascinating stone which in daylight glows deep Green with a Brown hue that can turn red in incandescent light, showcasing t...

This very chic vintage engagement ring is crafted in solid platinum and features a truly breathtaking GIA certified, cushion brilliant cut sapphire solitaire neatly prong set at its ...

This stunning cocktail ring showcases a beautiful GAL Certified Natural No Heat 4.59 Carat Cushion Purple Sapphire with a Diamond Halo. This stunning sapphire sits on a triple diamon...

--Stone(s):-- (1) Natural Genuine Sapphire - Elongated Cushion Cut - Dual Claw-Prong Set - Vivid Pure Purple Color w/ Few Natural Inclusions - NO HEAT - 3.01ct (exact - certified) **...

This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry house with nearly 50 years of history serving elite collectors, retailers, and dealers across the country. As the founder shifts focus to new ventures, he’s releasing a final selection of investment-grade gemstone and diamond pieces—offered exclusively to 1stDibs buyers at exceptional, below-market prices. This is not a liquidation or sale—it’s a one-time opportunity to acquire legacy-level jewelry at true insider value. Each piece is final; once sold, it will not be restocked. This is a cocktail ring that showcases a white gold, double prong set, 4.45 carat cushion cut purple spinel. The gem source is Sri Lanka; its transparency and luster are excellent. It has diamonds on the band and around the gemstone totaling 0.61 carats. Designed in brightly polished 14 K gold, this gorgeous ring...