Size: 16.1mm - 3.46gr (y18kt), 3.5gr (w18kt)16.51mm - 3.53gr (y18kt), 3.57gr (w18kt)16.92mm - 3.6gr (y18kt), 3.64gr (w18kt)17.35mm - 3.67gr (y18kt), 3.71gr (w18kt)17.75mm - 3.74gr (y18kt), 3.78gr (w18kt)18.19mm - 3.81gr (y18kt), 3.85gr (w18kt)18.89mm - 3.88gr (y18kt), 3.92gr (w18kt)19.41mm - 3.95gr (y18kt), 3.99gr (w18kt)19.84mm - 4.02gr (y18kt), 4.06gr (w18kt)20.2mm - 4.09gr (y18kt), 4.13gr (w18kt)20.68mm - 4.16gr (y18kt), 4.2gr (w18kt)Gem: 3.5mm - 1