Shvoratz' Sword. The blade is a melding of Amethyst and Blue Diamond. There is an Emerald set on one side and an Onyx on the other. There is a Ruby for a pommel.

This was loosely based on the Crystal Sword model from Diablo 2. The various gems involved are supposed to link to the various colors of mana in Magic: the Gathering.

Yes, I know that I should have used something white instead of Purple Amethyst. I liked the blue/purple combo too much.