A COLOURED DIAMOND, DIAMOND AND EMERALD RING, BY HARRY WINSTON

A COLOURED DIAMOND, DIAMOND AND EMERALD RING, BY HARRY WINSTON
Bezel-set with a rectangular-cut yellow diamond, within a whistle-cut diamond and keystone-cut emerald surround, flanked by tapered baguette-cut diamond shoulders, mounted in platinum and gold, ring size 4 ½ with ring sizer, in blue leather Harry Winston case

Please note that the coloured diamond has not been tested for natural colour
Signed Winston for Harry Winston
US$20,000-30,000