Jewelry Charts

Definitions - The distance of a straight line segment passing through the center of a figure, especially of a circle or sphere, and terminating at the edges

However, the following chart will help you to accurately determine how large a piece of jewelry or a gemstone truly is, so you will better understand the dimensions of the piece you are looking to purchase:

1 mm = approximately 1/32" 21 mm = approximately 13/16"

2 mm = approximately 1/8" 22 mm = approximately 7/8"

3 mm = approximately 1/8" 23 mm = approximately 15/16"

4 mm = approximately 3/16" 24 mm = approximately 15/16"

5 mm = approximately 3/8" 25 mm = approximately 1"

6 mm = approximately 1/4" 26 mm = approximately 1"

7 mm = approximately 1/4" 27 mm = approximately 1 1/16"

8 mm = approximately 5/16" 28 mm = approximately 1 1/4"

9 mm = approximately 3/8" 29 mm = approximately 1 1/8"

10 mm = approximately 3/8" 30 mm = approximately 1 3/16"

11 mm = approximately 7/16" 31 mm = approximately 1 1/4"

12 mm = approximately 1/2" 32 mm = approximately 1 1/4"

13 mm = approximately 1/2" 33 mm = approximately 1 5/16"

14 mm = approximately 9/16" 34 mm = approximately 1 3/8"

15 mm = approximately 5/8" 35 mm = approximately 1 3/8"

16 mm = approximately 5/8" 36 mm = approximately 1 7/16"

17 mm = approximately 11/16" 37 mm = approximately 1 1/2"

18 mm = approximately 3/4" 38 mm = approximately 1 1/2"

19 mm = approximately 3/4" 39 mm = approximately 1 9/16"

20 mm = approximately 13/16" 40 mm = approximately 1 9/16"

For comparison purposes, here are the diameter measurements of some common items:

• Dime = 17mm
• Penny = 19mm
• Nickel = 21mm
• Quarter = 24mm

Information - Jewelry Ring Size Chart

1. Wrap a piece of string or paper strip around the base of your finger.
2. Mark the string or paper where it overlaps to form a complete circle.
3. Measure the length of the section of string or paper where it overlaps around the finger.
4. Compare your measurement with this chart to determine your ring size.