Gwendolen

Most websites list the meaning as "white brow". So it would be perfect for a blondie, or a pale skin, or even white eyebrows! Being fair of brow can also be an expression meaning "beautiful" as in fair of face and fairness/prettiness.

If Gwen means white, fair or blessed, and dolen means ring, circle or bow, then the meanings can be any combination of these. I do however like the moon association, with white circle or white ring, as there is often a halo around the light of the full moon, which is also sometimes more of a gold colour. Speaking of gold, the term white ring firstly made me think of my wedding ring, a white-gold band, a symbol of unity and completion/ the circle of eternal love. As far as meanings go, this is not a bad one!

The element "dolen" can mean "bow, circle" as well as "ring". This could have originally referred to the moon ("white circle"). A beautiful name.