13 mai 2016
A 12.03 carats Burma octagonal step-cut sapphire ring, by Hemmerlé
Lot 77. A 12.03 carats Burma octagonal step-cut sapphire ring, by Hemmerlé. Estimate CHF250,000 – CHF300,000 ($258,053 - $309,664). Photo Christie's Image Ltd 2016. Set with an octagonal step-cut sapphire, weighing approximately 12.03 carats, to the polished...