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A coloured diamond and diamond ring. photo Bonhams

The heart-shaped fancy brown-pink diamond, weighing 10.63 carats, within a brilliant-cut diamond surround and bifurcated shoulders, mounted in 18k white gold and platinum, ring size 5¼. - Sold for HK$3,120,000

Accompanied by a certificate from GIA, stating that the 10.63 carats diamond is fancy brown-pink, natural colour and VS2 clarity. Report number 5111412116, dated 23rd November 2009

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A coloured diamond and diamond ring. photo Bonhams

The cut-cornered rectangular modified brilliant-cut fancy intense yellow diamond, weighing 13.52 carats, flanked by emerald-cut diamonds, weighing 0.91 and 0.93 carat, mounted in platinum, ring size 5¼. - Sold for HK$3,000,000

Accompanied by three certificates from the GIA, stating that the 13.52 carats diamond is fancy intense yellow, natural colour and VVS1 clarity, the 0.91 carat diamond is G colour and VVS2 clarity and the 0.93 carat diamond is G colour and VVS2 clarity. Report numbers 17235602, dated 23 May 2008, report number 16842349, dated 12th February 2008 and report number 16842341, dated 12th February 2008.

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A pair of coloured diamond and diamond earrings. photo Bonhams

Each half-hoop earring decorated with a series of floral motifs, set with brilliant-cut diamonds and diamonds of pink hue, mounted in 18k yellow gold, diamonds (excluding pink) approximately 2.20 carats total, diamonds of pink hue approximately 2.40 carats total, earring length 2.0cm. Sold for HK$36,000

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