Love the designs of 3DBug and Kolevvp. I have a teeny edit that needs to be made in both but am working against a deadline so whoever can edit them quickest will get selected
Thanks so much

Is it a regular hexagon? it should be 8.8 x 7.621 mm then

Can you see the designs already submitted? It is okay as long as they accommodate the crystal. That is what is determining the dimensions. Thank you

No I can't. I see that you are ready to choose the winner, so there's no point for me to start

no worries! Thank you

Uploaded revised design with black version and more accurate textures.
Depends on exact material and lighting it will look different, but the shapes of textures must be readable in that small scale of these things, so I had bumped these slightly to achieve it.
STL files are ready for each of them (ready for printing).