An 18k yellow gold Roberto Coin diamond butterfly necklace. The necklace features a yellow gold butterfly with a satin finish and rope detail. The butterfly pendant is set with three round diamond set in shared prongs. The 3 round diamonds have a total carat weight of .06 and a color and clarity grade of GH/SI. The butterfly pendant is set on a cable chain with a lobster clasp. The necklace can be worn at 15", 16", and 17" in length. The necklace is completed with the signature Roberto Coin ruby. Marked "RC", "18Kt", "ITALY".