Hang on... don't let me go, we look so good together! Two compatible halves have come together to form a two-tone unit shaped like a square cushion cabochon. One half is cut from genuine White Mother-of-pearl and the other half from genuine Black Onyx. They are celebrating their union with a sophisticated high polish tie binding them together for better and for... even better! The dimensions of the unit are approx. 22x31mm (including the bail).