18ct white gold, aquamarine, onyx and diamond necklace, the claw-set emerald-cut aquamarine pendant is framed by an onyx plaque with brilliant-cut diamond accents suspended from a hexagonal onyx surmount by a connector pave-set with brilliant-cut diamonds, completed by a fancy link chain, the aquamarine and diamonds together weighing approximately 22.88 carats and 0.16 carat respectively, pendant length approximately 66 mm, chain length approximately 450 mm.