Diamond drop pendant

centered in the pendant, a claw-set round brilliant-cut diamond weighing approximately 1.90 ct, surrounded by a double halo of pavé-set round brilliant-cut diamonds weighing approximately 0.92 ct, leading to the clip on bail, a claw-set round brilliant-cut diamond and two claw-set princess-cut diamonds weighing approximately 0.52 ct, pierced open work on the reverse, on a snake chain, 18k white gold, length approximately 46cm, total weight 14.70 grams