Rhinestone Size Chart - Comparing SS to MM Measurements

Rhinestone sizing can be confusing with its unique measurement unit. Gem hunters used the “ss” or “stone size” designation when naturally occurring gemstones still existed. Today, faux jewel manufacturers still use this measurement to describe rhinestone sizes. 
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Below is a rhinestone size chart converting the “ss” sizing into millimeters to help you choose the right product for your project. ​

Converting SS to MM

ss           mm                      ss            mm                                      ss            mm
5             1.7-1.8                 10          2.7-2.85                             34           7.0 -7.17
6             1.9-2                    12          3.0-3.1                                40           8.35-8.54
7             2.1-2.15               16          3.8-3.9                                48          10.95-11.11
8             2.3-2.35               20          4.6-4.7                                50           12
9             2.5-2.65               30          6.3-6.41