14K White Gold Natural Sapphire & Diamond Necklace. The piece is in excellent estate condition and ready to wear. The piece is hallmarked 585 on the clasp. It is set with 7 natural blue sapphires that come to approximately 3 carats total weight. There are also four .01 carat diamond accents between the top 5 sapphires. The necklace measures 16.75" long and weighs a total of 5.7 grams