Size: 16.1mm - 3.89gr (y18kt), 3.95gr (w18kt)16.51mm - 3.97gr (y18kt), 4.03gr (w18kt)16.92mm - 4.05gr (y18kt), 4.11gr (w18kt)17.35mm - 4.13gr (y18kt), 4.19gr (w18kt)17.75mm - 4.21gr (y18kt), 4.27gr (w18kt)18.19mm - 4.29gr (y18kt), 4.35gr (w18kt)18.89mm - 4.37gr (y18kt), 4.43gr (w18kt)19.41mm - 4.46gr (y18kt), 4.52gr (w18kt)19.84mm - 4.54gr (y18kt), 4.6gr (w18kt)20.2mm - 4.62gr (y18kt), 4.68gr (w18kt)20.68mm - 4.7gr (y18kt), 4.76gr (w18kt)Gem: 3.5mm - 1