Temporary stone holder?

[Addlepated]

I''m driving myself NUTS because I know I had one of these darned things here once but I can''t find it anywhere. Where''s the best place to find one of those little tension stone holder rings that many vendors send out with their loose stones?

 

[Independent Gal]

Is there a jeweler''s supply store near where you live? If not, check on line. Or on ebay.