1CT Dark Blue Sapphire and 1.50CTW 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 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 is a 2.07 carats royal blue sapphire that is surrounded by a stunning halo of round brilliant diamonds. The sapphire is from Sri Lanka. The color is royal blue; its luster, clar...

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 gorgeous 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 ...

.95ct Blue Sapphire & Diamond Ring In White Gold Introducing this stunning ring crafted in 14kt white gold. It features a .95ct blue sapphire centerpiece beautifully complemented by...

Blue Sapphire 5.26 carats with Diamond 2.80 carats Ring set in 18K White Gold Settings Width: 1.9 cm Length: 2.6 cm Ring Size: 51 Total Weight: 9.89 grams "We first opened doors ...

Blue Sapphire 4.63 carats with Diamond 1.46 carats Ring set in 18 Karat White Gold Settings Width: 1.0 cm Length: 1.2 cm Ring Size: 53 Total Weight: 9.1 grams "We first opened d...

Delightfully crafted in 18 carat white gold, The Parker Ring is a whimsy of ribboning gold, scarlet rubies and shimmering diamonds. She is a sweet reminder of an era long passed, car...