Yellow gold ring, stamped 18k, set with an oval blue sapphire and a surround of small round diamonds. Finger size about 13, shank sound. Colour shifts with lighting. No independent gem laboratory report; offered as a jewellery collector’s piece near USD 1,000. Bazaar demonstration lot. English catalogue text is original and not copied from a third-party auction house. Condition as described; overseas seller, starting bid near USD 1,000.