6ct. Sapphire to Hit Auction Block at Sotheby’s New York

The unmounted 5.98-carat Kashmir sapphire at Sotheby's image

A 5.98-carat sapphire will lead the upcoming Sotheby’s sale in New York, where it will carry a high estimate of $550,000.

The unmounted cushion-cut Kashmir sapphire will be offered without reserve at the June 4 Fine Jewelry sale, according to the auction house’s website. 

More than 290 lots will be on offer, including jewels from maisons such as Graff, Van Cleef & Arpels, and Cartier.

Here are the rest of the top 10 pieces:

An unmounted emerald-cut, 5.64-carat Colombian emerald at Sotheby's image
Estimate: $150,000 to $250,000
An unmounted emerald-cut, 5.64-carat Colombian emerald.
A ring centering an emerald-cut, 4.20-carat, fancy-vivid-yellow, VVS2-clarity diamond between two emerald-cut diamonds of 1.07 and 1.08 carats at Sotheby's image
Estimate: $120,000 to $220,000
A ring centering an emerald-cut, 4.20-carat, fancy-vivid-yellow, VVS2-clarity diamond between two emerald-cut diamonds of 1.07 and 1.08 carats.
A pair of earrings bearing a square emerald-cut, 5.01-carat, J, VVS2  and a square emerald-cut, 5.02-carat, I, VVS1 diamond at Sotheby's image
Estimate: $100,000 to $150,000
A pair of earrings bearing a square emerald-cut, 5.01-carat, J, VVS2  and a square emerald-cut, 5.02-carat, I, VVS1 diamond.
A Harry Winston ring bearing a pear-shaped, 6.72-carat, D, VS2 diamond between a pair of tapered-baguette diamonds at Sotheby's image
Estimate: $100,000 to $150,000
A Harry Winston ring with a pear-shaped, 6.72-carat, D, VS2 diamond between a pair of tapered-baguette diamonds.
This ring features a cushion-cut, 5.01-carat, E, VS1 diamond with the shoulders enhanced by round diamonds at Sotheby's image
Estimate: $100,000 to $150,000
This ring features a cushion-cut, 5.01-carat, E, VS1 diamond with the shoulders enhanced by round diamonds.
An unmounted octagonal step-cut, 6.97-carat Ceylon sapphire, offered without reserve at Sotheby's image
Estimate: $80,000 to $120,000
An unmounted octagonal step-cut, 6.97-carat Ceylon sapphire, offered without reserve.
This ring stars a cushion modified brilliant-cut, 1.56-carat, fancy-deep-orange diamond at Sotheby's image
Estimate: $80,000 to $120,000
This ring stars a cushion modified brilliant-cut, 1.56-carat, fancy-deep-orange diamond.
An unmounted sapphire, this one an oval-shaped, 11.84-carat Ceylon stone
at Sotheby's image
Estimate: $80,000 to $120,000
Another unmounted sapphire, this one an oval-shaped, 11.84-carat Ceylon stone.
A ring centering an emerald-cut, 9.10-carat, K, VS1 diamond, with about 4 carats of baguette diamonds on the shank at Sotheby's image
Estimate: $80,000 to $120,000
A ring centering an emerald-cut, 9.10-carat, K, VS1 diamond, with about 4 carats of baguette diamonds on the shank.

Main image: The unmounted 5.98-carat Kashmir sapphire. (Sotheby’s)

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6ct. Sapphire to Hit Auction Block at Sotheby’s New York

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