A ruby and diamond ring, by Harry Winston.  Photo Bonhams

The oval-shaped cabochon ruby, weighing 9.94 carats, set between a pair of shield-shaped diamonds, diamonds weighing approximately 1.00 carat total, maker's mark, Italian assay mark for gold, ring size L½.  Lot 169. Sold for AU$ 24,000 

Bonhams. 27 May 2012 4 p.m. Sydney, Byron Kennedy Hall. Fine Jewellery