Jewelry is measured through a gauge system (see chart below).
The *higher* the gauge number the *smaller* the wire is.
A standard "earring" is usually 20 gauge.
A standard ear piercing at an actual shop with a needle is usually a 14 gauge.
To get larger gauge piercings you have to stretch your piercings.
Jewelry gauges/sizes can vary between manufacturers.
There is no universal regulation on companies to make a standard size in body jewelry.
A big part of this is that some jewelry is made overseas and measured in millimeters.
And in the USA jewelry is measured in inches/gauges.
So many times jewelry can be anywhere from .5mm to 1mm different.
|00g||9mm to 10mm||3/8"|