Ruby and diamond ring. Sold 385,000 CHF at Sotheby's Geneva, 14 november 2007, lot 320. Photo: Sotheby's.

The oval ruby weighing 6.14 carats, set between similarly-cut diamond shoulders weighing 1.01 and 1.13 carats respectively, mounted in yellow gold and platinum, size 51.

Accompanied by Gübelin report no. 0706535 stating that the ruby is of Burmese origin, with no indications of heating; and by two GIA reports no. 15766930 stating that the 1.01 carat diamond is E Colour, VS1 Clarity, and no. 15766940 stating that the 1.13 carat diamond is E Colour, VS2 Clarity