Monica Rich Kosann's compass key necklace has been designed from 18-karat gold down to the most intricate detail. Part of the "Pocket Watch" collection, it's set with a single round-cut diamond at the center. Lobster-clasp fastening Composition: 18K gold; white diamonds Made in the USA Please note the possibility of natural inclusions in gemstones If you would like to consult with a fine jewelry expert please email Jules Smith Necklace measures 18" long