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Jewelry Sizing

Printable US Ring-Size Tool

Use this strip as a starting point for US finger sizing. Print on US Letter paper at Actual Size or 100%—never “Fit to Page.”

Lab Diamonds of AmericaUS Finger-Sizing Guide

Print at 100% · US Letter · Portrait

1. Verify the print scale before measuring

Check both lines with a physical ruler. If either is inaccurate, change the print setting to Actual Size / 100% and print again.

50 mm
2 inches

2. Cut and use the finger-sizing strip

  1. Cut carefully around the outside edge of the strip and cut the short vertical slit.
  2. Wrap the strip around the base of the intended finger, with the printed side facing out.
  3. Feed the pointed end through the slit and pull until comfortably snug—not tight.
  4. Read the US size that aligns with the slit. Repeat later in the day and at a comfortable room temperature.
CUT33.544.555.566.577.588.599.51010.51111.51212.513SLITUS RING SIZE

3. Record and confirm your result

US 344.2 mm circumference
US 3.545.5 mm circumference
US 446.8 mm circumference
US 4.548.0 mm circumference
US 549.3 mm circumference
US 5.550.6 mm circumference
US 651.9 mm circumference
US 6.553.1 mm circumference
US 754.4 mm circumference
US 7.555.7 mm circumference
US 857.0 mm circumference
US 8.558.3 mm circumference
US 959.5 mm circumference
US 9.560.8 mm circumference
US 1062.1 mm circumference
US 10.563.4 mm circumference
US 1164.6 mm circumference
US 11.565.9 mm circumference
US 1267.2 mm circumference
US 12.568.5 mm circumference
US 1369.7 mm circumference