1/2 ct Peridot Pendant By ilango - August 1, 2015 748 Use $20 Off Coupon Code: Sale Lend a sweet accent to your look with this resplendent pendant. A 1/2 ct round-cut peridot twinkles in a gleaming 10K gold setting. Piece measures 3/8 by 3/16 inches. Comes with a 10K gold 16-inch rope chain.