A DIAMOND COCKTAIL RING, BY OSTERTAG
Set with a central old-cut square-shaped diamond, to the graduated ropework shoulders and hoop, with four bombé elements at the cardinal points, 1940s, size 6¼, with French assay marks for platinum and gold
Signed Ostertag Paris
A DIAMOND COCKTAIL RING, BY OSTERTAG
Set with a central old-cut square-shaped diamond, to the graduated ropework shoulders and hoop, with four bombé elements at the cardinal points, 1940s, size 6¼, with French assay marks for platinum and gold
Signed Ostertag Paris
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