5. OPAL AND DIAMOND RING - French assay mark for 18 carat gold (750°/00) and platinum (850°/00) - Claw-set to the centre with an oval-shaped white opal, highlighted by brilliant-cut diamonds - Ring size N½ (54½) - Gross weight: 4.95 grams To be sold without reserve Overall condition: good, superficial wear in form of scratches, areas of oxidation Metal stamped and tested for 18 carat gold and platinum Opal with some play of colour - small flashes of orange, green and blue throughout, with some light surface wear to cabochon visible under 10x magnification, abrasion and scratches Diamonds: approx. 0.45 ct, J-K colour, SI-I clarity Marks: French maker's mark This condition report is provided for your convenience based on the opinion of our gemmologists. Bonhams is not responsible for any discrepancies between this information and other opinions.