Featuring 18k white gold halo diamond and emerald pendant. Emerald weighting 0.65 carat and diamond weighting 0.20 carats. After years of traveling the world in search of gems, OGI designs one of a kind jewelry to compliment women who want to make a statement. The halo setting is a setting that encircles any shaped gemstone with tiny round cut diamonds. Cable Chain 18" long and spring lock: a lock that fastens with a spring bolt.