18k white gold genuine oval shaped, faceted 16 x 12 mm Blue Topaz & 24 stone genuine 3/4 cttw Round Brilliant Cut diamond cluster pendant. These diamonds average G-H in color and SI in clarity. This pendant is suspended from a 16″ 18k white gold link style chain with a 14k white gold lobster clasp. This piece has an entire weight of 12.8 grams. We can swap out the clasp for an 18k white gold one if preferred.