A sapphire and diamond ring, of target design, centring on a cushion-shaped sapphire, within

A sapphire and diamond ring, of target design, centring on a cushion-shaped sapphire, within concentric borders of rose-cut diamonds and channel-set calibré-cut sapphires, mounted in gold, size P, stamped 750

Central sapphire measuring approximately 6.8 x 6.1 x 3.9mm, calculated to weigh approximately 1.10 carats. Deep greenish blue, in good condition. Some very minor chipping to some of the channel-set sapphires, some minor nicks to the edge of the setting. Overall in good condition, some discoloration to gold, gross weight 5 grams.