Multimeter Chart
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 3/16" 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"
In word to remeber is this every 25 MM's equals 1-inch and 12.5 MM equals 1/2-inch and so on.
For comparison purposes, here are the diameter measurements of some common items:
Dime = 17mm
Penny = 19mm
Nickel = 21mm
Quarter = 24mm
It is also important to make sure that you understand the definition of what the specific measurement is for. Here are some commonly misunderstood definitions:
Diameter: 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
Circumference: The size of an item as given by the distance around it.
We do hope this information helps you to make a more informed purchase; we always welcome any questions or suggestions regarding this guide or any of our items. Happy Jewelryshopping!