COLLIER OPALE ET DIAMANTS OPAL AND DIAMOND NECKLACE • French import marks for platinum (850°/00) and 18 carat white gold (750°/00) • 1 oval cabochon opal • Numerous brilliant-cut diamonds weighing approximately 0.80-1.00 carat total • Length: 54.50 cm • Gross weight: 11.68 grams