This pendant/necklace contains a fine London Blue topaz and three small diamonds. The topaz measures 3/4 X 1/2 inches and the overall pendant weighs 6.8 grams.  It is an enhancer that can be unclipped from the 16 inch gold chain and clipped on a strand of pearls or beads. Both the pendant and the gold chain are marked 585 14k and are in excellent condition.