Three Methods to Size Your Ring
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- You need a flexible tape measure, strip of cloth or ribbon. Take that and measure around the base of your neck.
- Get the circumference of the neck from the hollow at the base of the throat .
- Order the length that is at least the next size up in standard length necklace size Chart.
- Choker length, 16 inches. choker falls perfectly around the base of the neck. If you are very slim, a 16-inch necklace might hang to your collarbone.
- Princess length, 18 inches, will fall at the collarbone. For plus size person with a larger neck size, this is best suited for crew and high necklines.
- Matinee length, 20 inches, will fall past the collarbone just above a modest scoop neckline. This necklace is the right choice for casual or business dress.
Jewelry Size Conversion Chart Millimeter MM to Inch
For many U.S. buyers who do not use the metric system on a daily basis, this causes difficulty in being able to accurately guage the size of a piece of jewelry in their mind, and can result in disappointment if the piece is much larger or smaller than they imagined.
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:
1mm = 1/32"
2mm = 1/16"
3mm = 3/32"
4mm = 1/8"
5mm = 3/16"
6mm = Just under 1/4"
7mm = Just over 1/4"
8mm = 5/16"
9mm = Just under 3/8"
10mm = Just over 3/8"
11mm = 7/16"
12mm = Just under 1/2"
13mm = Just over 1/2"
14mm = 9/16"
15mm = Just under 5/8"
16mm = 5/8"
17mm = Just under 11/16"
18mm = Just over 3/4"
19mm = Just over 3/5"
20mm = Just under 13/16"
21mm = Just over 13/16"
22mm = Just under 7/8"
23mm = Just over 7/8"
24mm = 15/16"
25mm = 1"
For comparison purposes, here are the diameter measurements of some common items:
Dime = 17mm
Penny = 19mm
Nickel = 21mm
Quarter = 24mm
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.





