GIA Certified 3.10 Carat Fancy Greenish Yellow Cushion Diamond Ring in Platinum

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 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 unique halo cocktail ring features a oval cut green sapphire weighing 5.04carat. This green sapphire takes center stage in a 14k White Gold setting. Its gem source is Sri Lanka; its transparency and luster are excellent. A total of 92 mixed cut diamonds frame this center stone sapphire...

Stunning GIA certified natural yellow diamond with diamond halo ring, two-tone 18k white and yellow gold. 6.70 carats total diamond weight. 5.86 carat cushion Fancy Yellow color and ...

This Stunning GIA Certified 0.52 Carat Natural Fancy Yellow Cushion Cut Diamond set in the center of the Halo featuring 0.35 Carat of Color G Clarity VS Round Brilliant Diamonds arou...