Very Fine 8.19Ct Cushion Cut Tanzanite Ring

This is an artistic and truly unique ring. This large Tanzanite which weighs 6.25Ct is very deep and saturated in color and is also quite transparent. The addition of rubies to the...

This amazing Tanzanite Ring features a beautiful Triangle Cut Tanzanite that is a rich and vibrant purple blue hue. While having great depth of color, this gem quality Tanzanite is a...

This ring is custom designed to prominently show the beauty of this magnificent gemstone. The vast majority of sapphires on the market are treated with heat to enhance their color. T...

This is a vintage/antique style ring set with a rich, royal natural Blue Sapphire of 1.36Ct. The ring is hand carved and has delicate and intricate detail with great craftsmanship. ...

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 cocktail ring that showcases a 1.38 carat cushion cut tanzanite. It has diamonds around the gemstone totaling .57 carats. Designed in brightly polished platinum, this gorgeous ring...

A beautiful ring featuring a 4.02 Carat Natural Tanzanite and 0.31 Carat Diamonds Made in Platinum. Tanzanite's name was given by Tiffany and Co after its only known source: Tanzania...

Important Tanzanite ring flanked by a diamond on either side, made with a gentle halo in platinum. Stunning rare color! GRAM WEIGHT: 9.30gr GOLD: 14KT white gold NATURAL TANZANITE(S...

This extraordinary Huge 13.27 carat tanzanite is a true gemstone that is highly treasured. It is surrounded by a total of 3.4 carats of shimmering white diamonds, which adds to the o...