The higher the number, the thinner the post. Nose piercing is usually done with an 18 gauge (1.02mm) post. After a nose piercing heals, most people switch to a 20 gauge (. 81mm) post because it is thinner and leaves a smaller hole.
Regarding this, is 18G or 20G smaller?
When choosing your items specifics from the drop down list, please note the following: 18G = 18 Gauge 20G= 20 Gauge 22G= 22 Gauge 14K= 14 Karat Solid Gold 18K= 18 Karat Solid Gold 24K= 24 Karat Solid Gold 1.5mm Gem= Gemstone measures approx 1.5 millimeters in size 2mm Gem= Gemstone measures approx 2 millimeters in size …
