This was just a trial but worked out well. Previously, I've added a little felt at the back but was never quite satisfied with the extra element.
It doesn't look any different from the front as it did as a WIP (previous post) but you can get an idea of the big chunk this stone is here:
It seems to hang well which I think is down to the crochet back which goes over the pin base. Those stitches give a little more bulk at the back but I still think it would be best pinned to a coat or similar weight.
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