3.40ct Purple Sapphire and 1.41ctw Diamond Ring in 18K White Gold

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...

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 ...

This is a cocktail ring that showcases a 6.09 carat cushion cut tanzanite. It has diamonds on the band and around the gemstone totaling 1.20 carats. Designed in brightly polished 18 K gold, this gorgeous ring...

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 ...

Designer: custom design Material: 18K white gold Diamond: 14 round brilliant cut = 1.32cttw Color: G Clarity: VS2 Sapphire: 1 oval cut = 6.07ct Dimensions: ring top measures 18mm wid...

A large and captivating purple sapphire takes center stage. Weighing 6.17 carats, the oval-cut gem exudes a rich purple hue and is completely natural with no heat treatment of any tr...

6.90 Carats Natural Amethyst and Diamond 14K Solid White Gold Ring Suggested Replacement Value $5,000.00 Total Natural Checkerboard Cushion Cut Amethyst Weights: Approx. 6.00 Carat...

A stunning, fine and impressive 8.36 carat amethyst and 2.26 carat diamond, 18 karat white gold cluster ring; part of our diverse vintage jewelry and estate jewelry collections. This stunning, fine and impressive vintage amethyst ring...