The correct size is the smallest size you can comfortably get on and off your finger. We make most of the rings here so it is no problem to make half or quarter sizes.  Rings can be sized or exchanged for correct size if needed. FREE SIZING WITHIN 90 DAYS OF PURCHASE, with no charge for standard shipping on the first exchange. After the first exchange or for express shipping your only charge within the 90 days would be for shipping, unless the size it is being exchanged for crosses a price range.  If the size is in a different price range you will either be refunded or charged the difference.