We recommend that your significant other gets their finger sized prior to ordering your ring. Simply visit your local jewelry store to get professionally sized! It is truly the only way to get an accurate measurement.
Please do not "guesstimate" a finger size. It may just end up costing you to remake the ring in the end.
When in doubt, select the stock size (usually ladies size 7/men size 10), and will resize the ring once at no charge for you (see our sizing policy for details).