10ct. Blue Diamond Scores $8.7M at Sotheby’s

The 10.02-carat blue diamond that led the sale at Sotheby’s image

An unmounted 10.02-carat, blue diamond raked in $8.7 million at the recent Sotheby’s jewelry sale in New York.

The lot, a cut-cornered rectangular modified brilliant, fancy-intense-blue, VS2-clarity diamond, exceeded its $6 million high estimate at the June 16 High Jewelry auction, Sotheby’s said Wednesday. 

The auction garnered $43.4 million in total, with 98% of its 119 items sold and more than 63% achieving prices above their high estimates. Jewels from well-known designers such as Van Cleef & Arpels, Graff, and Cartier also found buyers.

Here are the rest of the top 10 pieces:

A ring starring an oval-shaped, 5.02-carat, fancy-intense-pink, internally flawless diamond, between two pear-shaped, light-pink diamonds at Sotheby's image
Sale price: $2.9 million
Estimate: $2 million to $3 million
A ring starring an oval-shaped, 5.02-carat, fancy-intense-pink, internally flawless diamond, between two pear-shaped, light-pink diamonds.
A pair of Cartier clips from 1935, comprising one emerald-cut and five cushion-cut Kashmir sapphires with a total weight of 23.02 carats and old European- and single-cut and baguette diamonds at Sotheby's image
Sale price: $1.6 million
Estimate: $80,000 to $120,000
A pair of Cartier clips from 1935, comprising one emerald-cut and five cushion-cut Kashmir sapphires with a total weight of 23.02 carats and old European- and single-cut and baguette diamonds. The pair achieved more than 13 times its high estimate.
A ring with a cut-cornered rectangular mixed-cut, 13.77-carat, fancy-light-purplish-pink, VS2 diamond at Sotheby's image
Sale price: $1.5 million
Estimate: $1.5 million to $2 million
A ring with a cut-cornered rectangular mixed-cut, 13.77-carat, fancy-light-purplish-pink, VS2 diamond.
An unmounted oval-shaped, 7.70-carat Brazilian Paraíba tourmaline at Sotheby's image
Sale price: $1.4 million
Estimate: $350,000 to $550,000
An unmounted oval-shaped, 7.70-carat Brazilian Paraíba tourmaline.
This ring centers a cushion modified brilliant-cut, 6.76-carat, fancy-greyish-blue, SI1 diamond, framed by round, pink-hued diamonds, between a pair of shield-shaped stones at Sotheby's image
Sale price: $1.2 million
Estimate: $1.2 million to $1.8 million
This ring centers a cushion modified brilliant-cut, 6.76-carat, fancy-greyish-blue, SI1 diamond, framed by round, pink-hued diamonds, between a pair of shield-shaped stones.
A ring with a round cornered square modified brilliant-cut, 34.75-carat, fancy-intense-yellow, VS1 diamond between by two triangle-shaped diamonds at Sotheby's image
Sale price: $1 million
Estimate: $600,000 to $800,000
A ring with a round cornered square modified brilliant-cut, 34.75-carat, fancy-intense-yellow, VS1 diamond between by two triangle-shaped diamonds.
A Harry Winston necklace, which can also be converted into two bracelets. It comprises graduated pairs of round diamonds alternating with marquise-shaped diamond clusters at Sotheby's image
Sale price: $998,400
Estimate: $800,000 to $1.2 million
A Harry Winston necklace, which can also be converted into two bracelets. It comprises graduated pairs of round diamonds alternating with marquise-shaped diamond clusters.
An unmounted modified triangle-shaped, 6.11-carat Mozambique Paraíba tourmaline at Sotheby's image
Sale price: $972,800
Estimate: $300,00 to $500,00
An unmounted modified triangle-shaped, 6.11-carat Mozambique Paraíba tourmaline.
A toi et moi ring with two marquise-shaped diamonds – a 2.20-carat, fancy-pink, VS1 and a 2.12-carat, fancy-grey-blue, SI2 diamond – accented by near-colorless marquise-shaped and baguette diamonds at Sotheby's image
Sale price: $960,000
Estimate: $200,000 to $300,000
A toi et moi ring with two marquise-shaped diamonds – a 2.20-carat, fancy-pink, VS1 and a 2.12-carat, fancy-grey-blue, SI2 diamond – accented by near-colorless marquise-shaped and baguette diamonds.

Main image: The 10.02-carat blue diamond that led the sale. (Sotheby’s)

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10ct. Blue Diamond Scores $8.7M at Sotheby’s

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