8mm David Yurman Chain with gorgeous Blue Topaz removable enhancer. The Swiss Blue Topaz is surrounded by a “Halo” of 36 full cut 1mm diamonds. Carat weight approximately .40 ct. Complete weight of necklace is 60.9 grams. The previously owned necklace is in excellent condition and features an added Sterling silver swivel safety clasp. The 18kt yellow gold clasp and the bale of the pendant are both engraved with the DY David Yurman trademark.