An important coloured diamond and diamond ring. Photo: Christie's Images Ltd. 2011 Set with a marquise-cut fancy blue diamond weighing 13.39 carats, flanked on either side by a tapered baguette-cut diamond, mounted in platinum, ring size 5. Estimate HK$27,000,000...

Important Pair of Fancy blue diamond and diamond pendent ear clips, Alexandre Reza. photo courtesy Sotheby's Each surmount designed as a cluster of three pear-shaped diamonds weighing 0.93, 1.07, 1.10, 1.10, 1.26 and 1.48 carats, suspending a brilliant-cut...

A stunning pair of coloured diamond and diamond ear pendants. photo Sotheby's Each set with a heart-shaped fancy deep blue diamond weighing 2.48 and 2.03 carats, suspending a detachable pear-shaped diamond weighing 10.12 and 9.64 carats, mounted in platinum,...

The Annenberg Diamond. Weighing 32.01 carats. Mounted by David Webb. Estimate: $3-5 million US. Christie's Image Ltd 2009 New York - Christie's is delighted to announce further details of its upcoming flagship auction on October 21, 2009. The day will...