The Icarus Fanned Ring is made from sterling silver with gold vermeil and measures 2cm x 2cm. Ring Sizes: Our rings can be made to any size, please state what size you require at the checkout when ordering. If you are unsure of your exact size our average ring sizes are as follows:EXTRA SMALL : Equivalent to UK J1/2, US 5 or 15.7mm diameterSMALL : Equivalent to UK M, US 6 or 16.5mm diameterMEDIUM : Equivalent to UK O, US 7 or 17.3mm diameterLARGE : Equivalent to UK Q, US 8 or 18.1mm diameterEXTRA LARGE : Equivalent to UK S, US 9 or 19.5mm diameter