If you,or someone you love, has desired an eternity or anniversary ring for some time, then perhaps this page will put an end to that wait. Sizing is important when it comes to this category of ring. Full eternity diamond rings cannot be resized up so please note the sizing on each description. It is possible to add two balls of gold/platinum to eternity rings to enable a small size down. Partially covered diamond eternity rings do have limited ability to be resized.