The standard size for rings on their site is a 7, but Fanci.me does have other sizes available on select pieces which will then appear in a drop-down selector. If you do not find the size you need and would like the ring sized to fit, Fanci.me recommends you consult your local jeweller for resizing options. You can also have a ring guard placed inside of the band to secure it in place. Fanci.me does not offer engraving options.