The Selene Eclipse Ring explores the negative spaces which are created when it is worn. It is made from Sterling silver and measures 1.5cm x 2cm with a 2mm round band. 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