At the December Sothebys and Christie’s auctions, fancy colored diamonds were the top sales, though both houses were disappointed by important lots that did not sell.
Christie’s top diamond sale was:
* A fancy intense blue diamond pendant that featured a pear-shaped 2.17-carat, natural color VS1 that sold for $220,300, or $101,520 per carat.
At Sotheby’s, meanwhile, large sales of colored diamonds included:
* A fancy vivid blue 5-ct. emerald cut VS2 that sold for $2,024,000, or $404,800 per carat.
* A fancy intense 12.9 carat internally flawless brilliant cut yellow diamond ring that sold for $220,800, or $17,054 per carat.
Not finding a buyer at Christie’s was:
* a 10.31-carat, D-color, internally flawless stone with an estimate of $320,000.
At Sotheby’s, the disappointment was the lack of a buyer for a very rare diamond pendant that featured several stones:
* a pear-shaped light blue 1.22-ct. diamond , natural color VS1; a round brilliant fancy gray ish blue 1.46-ct. diamond, natural color, VS2; a marquise fancy blue 1.44-ct. diamond, natu ral color, VS2; and a fancy green-blue 8.81-ct. briolette diamond weighing 8.81, natural color, SI2. The green-blue briolette was accompanied by a letter from GIA research, stating the rare nature of such a stone. The pre-sale estimate for the piece was up to $1.2 million.