Finger size (diameter finger) - 15, 16, 17, 18, 19, 20, 21mm Weight gold 14k and Silver 925 Ring 15 size - Gold: 9.5 grams;___ Silver: 7.4 grams Ring 16 size - Gold: 9.8 grams;___ Silver: 7.6 grams Ring 17 size - Gold: 9.2 grams;___ Silver: 7.9 grams Ring 18 size - Gold: 10.5 grams;___ Silver: 8.2 grams Ring 19 size - Gold: 10.9 grams;___ Silver: 8.4 grams Ring 20 size - Gold: 11.2 grams;___ Silver: 8.7 grams Ring 21 size - Gold: 11.6 grams;___ Silver: 9 grams