Did you know that cutting a gem requires knowledge of the molecule of the specific gem, and then the angles making it up? Once you know the angles, you then figure out the angle of the cuts, and therefore the shape to bring about the most shimmer & shine!
I purchased this one - it's not one my father made, but I love how you can see some of the intricacies in this stone - changes in shade and density.
Just another post appreciating nature's beauty and looking closely!