A SECESSIONIST STYLE COCKTAIL RING

A SECESSIONIST STYLE COCKTAIL RING, the square panel close back collet set with an oval cabochon polished opal offset to one corner against a line of nine point set small diamonds to a further slightly larger diamond to the edge, to a plain shaped shank stamped 585, possibly Austrian, size U 1/2 (Illustrated) (Est. plus 24% premium inc. VAT)