A fancy-coloured diamond single-stone ring © 2002-2009 Bonhams 1793 Ltd

The fancy-coloured radiant-cut diamond, weighing 9.12 carats, between shield-shaped diamond shoulders, ring size P½, cased. Sold for £120,000

Accompanied by a certificate from GIA stating that the diamond is fancy intense yellow, natural colour, internally flawless clarity. Certificate number 8776780, dated 29th May 1996.

A diamond and fancy-coloured diamond necklace © 2002-2009 Bonhams 1793 Ltd

Set to the centre with a fancy-coloured step-cut diamond, weighing 3.37 carats, within a polished and pavé-set brilliant-cut diamond V-shaped central section, on a flattened curb-link collar, length 45.2cm. (Illustrated unmounted) - Sold for £66,000

Accompanied by a certificate from GIA stating that the diamond is fancy vivid yellow, natural colour, VVS2 clarity. Certificate number 5111274935, dated 27th October 2009.

Bonhams. Fine Jewellery. New Bond Street, 9 Dec 2009 www.bonhams.com