14-karat white gold Faceted prong-set diamonds = approximately 0.55 ct. tw.; color = G-H; clarity = SI2 Black diamonds = approximately 0.03 ct. tw. Blue Sapphire gemstones = approximately 0.28 ct. tw. Approximately 6.75in long Lobster claw clasp It is customary to treat most gemstones to achieve enhanced color and durability. Some of these treatments may not be permanent and may require special care.