A diamond single-stone ring. photo Bonhams
The old brilliant-cut diamond, weighing 15.13 carats, to a six-claw setting, ring size J½. Estimate: £80,000 - 120,000, US$ 130,000 - 190,000
Bonhams.Fine Jewellery, 25 Apr 2012. London, New Bond Street www.bonhams.com