The illusion is there on this vintage find.  My Soul Doll Hye is modeling.  She is what they call the SD size of about 58".  The "ring" does not fit on the finger itself, but is tied on with what will be an invisible silk ribbon after the length is trimmed off.  I will include this ribbon with the bead.

There is no fussing with this bead after it has been tied on.  It looks very realistic.  This is a fauceted bead that will catch the light.