Natural GIA Certified 4.04 Ct Brazillian Alexandrite & Diamond Vintage Ring

Oscar Heyman Alexandrite Diamond engagement ring is an impressive piece of jewelry featuring a 6.04 ct natural cushion cut Alexandrite known for its vibrant color change from blue-gr...

This is a custom one of a kind Platinum and 18K Gold Ring. It is set with a beautiful Cushion Modified Brilliant Cut Natural Alexandrite with a GIA report. It is transparent with a ...

A large and impressive alexandrite, weighing 7.75 carats takes center stage! It is shaped as a cushion and is certified by the GIA as natural with color-change as the stone moves fro...

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. Your Alexandrite search is over. The 4.04 carat Alexandrite is one of the most important gems in our collection. It's BGL certified and cushion. It exhibits a brilliant olive green body...