It is approximately 5mm wide (just over 3/16"). The rainbow moonstone cabochon is 3mm round, or almost 1/8".
WHAT IS A GAUGE?
The THINNER the gauge, the HIGHER the number. For example: 22 gauge is thinner than 20 gauge, and 20 gauge is thinner than 18 gauge (see the chart).
*** All of the pieces in my shop are for healed piercings only. If you are not sure whether your piercing is healed, please consult a professional ***
SEE FAQ'S FOR USE & CARE, SHIP TIMES, ETC: http://www.etsy.com/shop/RockYourNose/policy