An unusual sapphire, diamond and emerald ring, by Manuel Bouvier. Photo Christie's Image Ltd 2010

The cushion-shaped sapphire weighing 65.17 carats to the pear-shaped diamond shoulders weighing a total of 2.87 carats within a pavé-set emerald surround to the similarly set gallery and bifurcated hoop, ring size 6¾, stamped "750". With maker's mark for Manuel Bouvier. Estimate $45,000 - $55,000. Price Realized $164,500

Accompanied by report no. GRS2008-091669 dated 13 September 2008 from the GRS Gem Research Swiss Lab stating that the sapphire is Burmese (Mogok, Pain Pyit) origin, no indication of thermal treatment

Accompanied by report no. 08008287002 and 08008287003 from HRD Diamond High Council, Antwerp (HRD) stating that the diamonds are I colour, VS1 and VS2 clarity

Christie's. JEWELS AND WATCHES: THE DUBAI SALE. 28 April 2010. Jumeirah Emirates Towers Hotel. www.christies.com