thanks everyone for your replies.
i’m afraid i wasn’t specific enough about what i was trying to
what i’m looking for is a round -gem of relatively inexpensive
material. it might have a hexagonal table with the star facets
and break facets configured respective to the table. the pavillion
facets are arranged in a way so that if one would matte polish
(or sand blast) certain facets, it would represent a clear,
linear star of david.
hope this is clearer.