12 avril 2014
Jewellery and Watches. Several diamonds ended in the six-digit range at Koller Zurich, 25 March 2014.
ZURICH - On 25 March, Koller auctioned off jewellery and watches. Once again, diamonds were highly coveted. The tourmaline and diamond ring by Graff with a tourmaline of 29.6 ct and two diamonds weighing 2.01 ct each, sold for CHF 132 000 CHF (lot 2130)....