White gold, platinum and diamond mesh necklace

18-karat white gold and platinum mesh necklace The chain consists of a fine curb chain holding a motif formed by two marquise-shaped beads, adorned with two rose-cut diamonds, supporting a cascade of three cushion-cut and old-cut diamonds, terminating in an openwork teardrop motif set with rose-cut diamonds and two cushion-cut and old-cut diamonds as a central pendant. The clasp is a spring ring.