Size: 16.1mm - 2.49gr (y18kt), 2.53 (w18kt) 16.51mm - 2.55gr (y18kt), 2.58(w18kt) 16.92mm - 2.61gr (y18kt), 2.64(w18kt) 17.35mm - 2.67gr (y18kt), 2.7 (w18kt) 17.75mm - 2.73gr (y18kt), 2.76 (w18kt) 18.19mm - 2.79gr (y18kt), 2.82(w18kt) 18.89mm - 2.85gr (y18kt), 2.88 (w18kt) 19.41mm - 2.91gr (y18kt), 2.94 (w18kt) 19.84mm - 2.97gr (y18kt), 3 (w18kt) 20.2mm - 3.03gr (y18kt), 3.06 (w18kt) 20.68mm -3.09 gr (y18kt), 3.13 (w18kt) Gem: 3mm - 1;