Sapphire and diamond dress ring, central round cut sapphire, estimated weight 1.00 carat, set within

Sapphire and diamond dress ring, central round cut sapphire, estimated weight 1.00 carat, set within a border of round brilliant cut diamonds and round cut sapphires, mounted in 18 ct yellow gold, hallmarked London 1988, markers mark CMJ, ring size O. Gross weight 6.8 grams