Coastal Gems

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46 products

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Ring Size Guide

How to measure

Use a ring of yours that fits the desired finger. Then measure the internal diameter of that ring (in mm). Ensure your ruler starts at the 0mm mark. If you're between sizes, size up to the nearest full size.

Use the size chart below to determine your ring size.

Size	Internal Diameter (mm)
4	14.8mm
5	15.6mm
6	16.4mm
7	17.2mm
8	18mm
9	18.9mm
10	19.75mm
XS/S	15mm - 18mm
M/L	17mm - 20mm

Coastal Gems

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How to measure