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What ring-size system do you use?


High Performance Diamonds uses the Kate Wolf TRUE-SIZE precision-calibrated system. Employed by many designers and manufacturers, our sizing mandrel will be exactly the same as all others who use this system.

Aren't ring sizes universal?

Ring sizing systems in the USA and Canada are reliably close but do not always match precisely. Personal taste does play a part in this. If you've always worn (example) size 6, and sourced many rings with success, then you can confidently order size 6. Some people are more sensitive than others and notice slight differences from system to system. If you have any concerns, we can assist you in determining what your size is.

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