[Size] Inner diameter is about 17.5mm, so it's likely equivalent to a size 14 or 15. This is a SILVER500 ring featuring one zirconia stone of approximately 6mm and two zirconia stones of approximately 4mm. It's too big for me, and I've stored it almost unused, so there might be some minor scratches, but I think it's in good condition. Please check the images carefully and agree to the above before purchasing.