Dear Nora, Thanks for showing the keshi... Kamoka taking all the credit for the luster.
and to Judimcc6, Thanks for the useful tips about lighting. I believe I took those with natural light. I just got a new camera and have had my head deep in lighting issues for days.. so it was serendipitous to see your post on lighting and angles.
And speaking of serendipity.. sounds like all the single earrings are already in a Tom Robbins book waltzing in their unique wonderland!