The past couple of days I've been trying ways of recreating Clef's gems. First picture is a bauble with glass paint, second a bauble painted with a spray can, third is hot glue painted with nail varnish and forth is polymorph with glass paint.
I found polymorph works so well! Brush marks didn't help but airbrushing or more coats will help that. I'm also going to use "coolmorph" instead or polymorph as that dries too quickly to mould something like gems. I'm surprised I've not seen tutorials about this method as I think it's a cheaper option to resin *_* or at least cheaper if you can't find moulds for what you are making