It is easy to measure the size of your ring if you do not know it. Wrap a thin strip of paper around your finger. Make sure the paper is below the joint of your finger and close to your knuckle. Make sure the paper is tightly wrapped around your finger for an accurate measurement. You can determine the correct size for yourself by using the sizing tab on the product page of the ring that you desire. Mark the spot where the paper meets and measure the distance with your ruler. Please refer to the sizing tab of each product for the exact measurements of each ring.