14K Yellow Gold Diamond and Blue Topaz Emerald Cut Necklace With Flower Pattern Gallery by Gabriel and Co, features a diamond weight of  .48 ctw and an approximate weight of 9.6 carat weight of Blue Topaz. There is a beautiful halo surrounding the Blue Topaz . The chain is a 14kt yellow gold paper clip chain 17 inch total. This beauty is a stunning piece to wear to work, play or dress.