ROBERTO COIN 18k Yellow Gold 0.17ctw Diamond Medium Princess Flower Necklace. Authentic Roberto Coin designer necklace. 18k yellow gold. 3.9 grams. Pendant is 10.6mm wide and 3.3mm thick. Roberto Coin cable chain with lobster clasp – 16 to 18 long (adjustable). 16 round brilliant cut Diamonds – 0.17ctw. Diamonds are G-H color and SI1 clarity….