Orianne 2000's 8.24 CTW Madagascar Alexandrite Diamond 18K Gold Ring GIA
Located in Philadelphia, PA
Centering a cushion cut alexandrite weighing 7.70 carats total - transparent yellowish green Exhibiting color change to brownish yellow - natural Madagascar in origin Prong set in ...
Alexandrite, Diamond, Gold, 18k Gold, White Gold
Edwardian 1.90 CTW No Heat Burma Ruby Diamond Platinum Antique Three Stone Ring
Located in Philadelphia, PA
Centering a cushion cut ruby weighing 1.12 carats - transparent medium purplish red in color Natural Burmese in origin and displaying no indications of heat treatment Prong set and f...
Diamond, Ruby, Platinum
1980's Vintage 4.73 CTW Diamond Spinel Platinum Three Stone Ring
Located in Philadelphia, PA
Centering an oval cut spinel weighing approximately 3.85 carats total - transparent medium blue in color Prong set in basket and flanked by triangular step-cut diamonds prong set in ...
Diamond, Spinel, Platinum
Edwardian 3.47 CTW No Heat Burma Ruby Diamond Platinum Antique Fanning Halo Ring
Located in Philadelphia, PA
Centering a round cut ruby weighing 1.97 carats total - transparent medium purplish red Natural Burmese (Myanmar) in origin and displaying no indications of heat treatment Prong set ...
Diamond, Ruby, Platinum
Mid-Century 2.06 CTW Fancy Diamond Platinum Three Stone Vintage Ring GIA
Located in Philadelphia, PA
Centering a round brilliant cut fancy colored diamond weighing 0.72 carat Fancy deep brownish orange with even natural color and SI1 in clarity Flanked by two well matched old mine c...
Diamond, Platinum
1980 16.58 CTW No Heat Ceylon Sapphire Garnet Diamond 18K Gold Vintage Ring GIA
Located in Philadelphia, PA
Centering an oval cut sapphire weighing 9.73 carats total - transparent light yellow Natural Sri Lankan (Ceylon) in origin displaying no indications of heat treatment Prong set in ba...
Diamond, Sapphire, Yellow Sapphire, Gold, 18k Gold, White Gold
4.04 Carat Cushion Alexandrite and Diamond Ring in 14K White Gold
Located in Chicago, IL
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...
Diamond, Alexandrite, 14k Gold, White Gold
Vintage Inspired Art Deco Style Alexandrite & Diamond Platinum Ring
Located in Houston, TX
This vintage art deco inspired ring features three natural cushion cut alexandrite's weighing 2.35 carats accented by 0.60 carat total weight in round diamonds set in platinum. The r...
Alexandrite, Diamond, Platinum
Ceylon Alexandrite and diamond coronet cluster ring, circa 1915.
Located in London, GB
Ceylon Alexandrite and diamond coronet cluster ring. Set to centre with an oval old cut natural unenhanced Ceylon alexandrite in an open back claw setting with an approximate weight ...
Alexandrite, Diamond, Platinum
GIA Certified 5.50Ct Natural Ceylon Alexandrite Ring Accented With Side Diamonds
By The Diamond Source
Located in San Diego, CA
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 ...
Alexandrite, Diamond, Platinum
2.02 Carat Ceylon Alexandrite GIA and Diamond Platinum Halo Ring
Located in Montreal, QC
Simply Beautiful! Ceylon Alexandrite GIA and Diamond Platinum Ring. Centering a securely nestled Hand set Ceylon Alexandrite GIA, framed by a Hand set .76tcw Diamond Platinum halo. A...
Diamond, Alexandrite, Platinum
Vintage Brazilian Alexandrite GIA and Diamond Platinum Double Halo Cocktail Ring
Located in Montreal, QC
Simply Beautiful! Brazilian Alexandrite GIA and RBC Diamond Double Halo Platinum Cocktail Ring. Featuring a Rare, Natural Color-Change Chrysoberyl mined in Brazil. Securely nestled H...
Alexandrite, Diamond, Platinum
