Important Modern & Vintage Timepieces
Geneva, Jun 28, 2020
LOT 221
STAR SAPPHIRE AND DIAMOND RING, WS BOWMAN
CHF 8,000 - 10,000
HKD 65,000 - 80,000 / USD 8,000 - 10,000
Cabochon star sapphire of 15.50 carats, circular and baguette-cut diamonds, platinum (900), 1930s, size 50, signed WS Bowman GRS 2016, report no GRS2016-037569, 15.5 carats, Burma, (Myanmar), No indication of thermal treatment (accuracy as testing in mounting permits)
Brand Ws Bowman