5.51 Carat Spinel Oval Cut & 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 ...

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 is a 3.48 carats vibrant royal blue sapphire takes center stage on this luxurious setting. Its gem origin is Sri Lanka. It is polished and faceted to a cushion cut. Its color, transparency, and luster are excellent. A total of 34 round brilliant cut diamonds adorn this stunning 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 ...

A captivating ring featuring a central blue spinel, cut in an elegant oval shape, weighing 5.79 carats. The deep blue hue of the spinel is accentuated by 1.34 carats of diamonds set ...

GIA Certified: 1.89ct. Natural blue sapphire ring. Full cut brilliant oval cut Clean clarity Transparent and vibrant top Bright Gem Royal Blue 8.93 X 6.80 x 3.69mm .12ct. Natura...

A rare and top-quality gem blue sapphire takes center stage. It weighs an impressive 7.37 carats and exudes a rich intense royal blue color that is also completely natural. The sapph...

A rich velvety sapphire takes center stage. It weighs an impressive 7.19 carats and has a brilliant deep blue color which is even and clean. Adding to...