An impressive diamond ring & An emerald and diamond necklace and ring suite, by Cartier

An impressive diamond ring, by Cartier. photo Bonhams

The step-cut diamond, weighing 27.05 carats, within a six-claw setting, to bullet-shaped diamond shoulders, mounted in platinum, signed 'Cartier Paris' and numbered, French assay marks, ring size 5¼. Sold for HK$2,160,000

Accompanied by a certificate from GIA stating that the 27.05 carats diamond is fancy light yellow, natural colour, VVS2 clarity. Report number 13283032, dated 16th March 2004.

An emerald and diamond necklace and ring suite, by Cartier. photo Bonhams

The necklace designed as a series of oval-cut emeralds connected by brilliant and shield-shaped diamond circlet links, accompanied by a ring of similar design, mounted in 18k yellow gold, signed 'Cartier Paris', French assay marks, diamonds approximately 40.40 carats total, necklace length 31.4cm, ring size 4½. (2). Sold for HK$456,00

Bonhams. Fine Jewellery and Jadeite and Modern Wristwatches. JW Marriott Hotel Hong Kong, 28 May 2010 to 29 May 2010 www.bonhams.com