10ct. Pink Diamond Tops Bonhams Auction

A 10.03-carat diamond ring was the top seller at Bonhams’s Hong Kong auction, which saw a total of 163 lots sold for a combined $6.7 million.

The oval-cut, fancy brown-pink stone — flanked by a white diamond on each side — went for $606,200 at the Rare Jewels and Jadeite sale, Bonhams said Tuesday. That was at the upper end of its pre-sale estimate of $395,000 to $636,000.

“This piece was of great significance to present in our sale, as pink diamonds are becoming increasingly rare,” said Graeme Thompson, director of jewelry for Bonhams Asia. “Only one in 10,000 carats of mined diamonds is of gem-quality fancy color, and of this small amount, just 0.01% are fancy pink diamonds.”

A cushion-shaped, 4.01-carat, pigeon’s blood, Burmese ruby ring garnered $548,078, against an estimated price of $445,000 to $635,000, while a ring featuring a 12.92-carat Kashmir sapphire surrounded by diamonds fetched $471,602. The piece had a pre-sale estimate of $120,000 to $510,000.

Designer and antique jewelry pieces featuring emeralds sold well, as did jewels from Harry Winston and Bulgari. There was robust demand in most categories, the auction house said.

“The sale saw strength across the board in each sector — white diamonds, colored diamonds, gemstones, designer antique jewelry and jadeite — which shows the buoyancy of the market,” Thompson added.

Bonhams’s upcoming auctions include three London jewelry sales, which will take place on June 13, July 11 and September 12.

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