Kat Florence 5.13 Carat Zultanite and Diamond 18K Gold 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 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 cushion cut green sapphire...

A stunning 5.13 carat VVS quality White Diamond set in solid 26 grams of 18K Yellow Gold. The ring is unisex, sized at US 9.25 , can be resized. The center is invisible set diamonds,...