Diamond Sapphire Cross Necklace. 18k white gold necklace with a cross, set with diamonds and sapphires on the cross and sapphires on the chain. The chain has 129 sapphires weighing 87.5cts and the cross has 30 large sapphires weighing 29.70cts, small sapphires weighing 13.50cts and diamonds weighing 6.30cttw.