Ring Sizes

Key Points
  • Engagement and wedding rings are traditionally worn on the third finger on the left hand.
  • Your finger size is more accurate when your hand is warm. A cold hand is smaller.
  • If in doubt go for a larger size.
  • Measure an existing rings inside diameter and compare it to the table below.
  • Ask your partner's mother or one of her friends if they know her finger size.
  • If the ring does not fit, please contact our service representatives to have it re-sized free of charge.
U.S Canada Ring Sizes
Size Diameter Circumference
Size 3.0 14.0 mm 44.0 mm
Size 3.5 14.4 mm 45.2 mm
Size 4.0 14.8 mm 46.5 mm
Size 4.5 15.2 mm 47.8 mm
Size 5.0 15.6 mm 49.0 mm
Size 5.5 16.0 mm 50.3 mm
Size 6.0 16.45 mm 51.7 mm
Size 6.5 16.9 mm 53.1 mm
Size 7.0 17.3 mm 54.3 mm
Size 7.5 17.8 mm 55.6 mm
Size 8.0 18.2 mm 57.2 mm
Size Diameter Circumference
Size 8.5 18.6 mm 58.4 mm
Size 9.0 19.0 mm 59.7 mm
Size 9.5 19.4 mm 60.9 mm
Size 10.0 19.8 mm 62.2 mm
Size 10.5 20.2 mm 63.5 mm
Size 11.0 20.6 mm 64.7 mm
Size 11.5 21.0 mm 66.0 mm
Size 12.0 21.4 mm 67.2 mm
Size 12.5 21.8 mm 68.5 mm
Size 13.0 22.2 mm 69.7 mm
Size 13.5 22.6 mm 71.0 mm
Britain, Australia, New Zealand Ring Sizes
Size Diameter Circumference
Size F 13.9 mm 43.7 mm
Size G 14.3 mm 44.9 mm
Size H 14.7 mm 46.2 mm
Size I 15.1 mm 47.4 mm
Size J 15.5 mm 48.7 mm
Size K 15.9 mm 49.9 mm
Size L 16.3 mm 51.2 mm
Size M 16.7 mm 52.4 mm
Size N 17.1 mm 53.7 mm
Size O 17.5 mm 54.9 mm
Size P 17.9 mm 56.2 mm
Size Q 18.3 mm 57.5 mm
Size R 18.7 mm 58.7 mm
Size Diameter Circumference
Size S 19.1 mm 60.0 mm
Size T 19.5 mm 61.2 mm
Size U 19.9 mm 62.5 mm
Size V 20.3 mm 63.7 mm
Size W 20.7 mm 65.0 mm
Size X 21.1 mm 66.2 mm
Size Y 21.5 mm 67.5 mm
Size Z 21.9 mm 68.7 mm
Size Z+1 22.3 mm 69.9 mm
Size Z+2 22.7 mm 71.3 mm
Size Z+3 23.1 mm 72.5 mm
Size Z+4 23.5 mm 73.8 mm
Size Z+5 23.9 mm 75.0 mm