Making sure your ring fits is a crucial part of the ring shopping process. All Patrick Adair Designs Rings are sized in US sizes. If you are unsure of your ring size please order our Free Ring Sizer first. We are unable to offer free size exchanges for any ring containing gold. Our TruStone Rings are eligible for a free size exchange. If you're ring isn't a perfect fit, contact us at email@example.com, and we will be more than happy to find a solution for you.