Our Emerald Cut Amethyst & Diamond Birthstone Necklace is a timeless classic. Designed in 14K Gold for the stylish woman looking to exude everlasting grace and charm. Birthstone Necklace for Women Metal - 14K Gold (White / Yellow) Gem Type - Emerald Cut Amethyst Gemstone (0.23 CTTW) Diamonds - Natural Round Shape (0.04 CTTW) Diamond Color/Clarity - GH/SI1 Setting - Bezel with Milgrain Chain - 18 inch with jump rings at 16 & 17 inches.