Tanzanite is a rich deep blue blank with incredible depth. The holographic flake, silver, and diamond mostly reflect back the blue but in the light you'll see multi color flashes.
These are best drilled on the lathe and paint the inside of the blank.
DiamondCast™ blanks are indivudally cast using Alumilite and contain real diamonds for amazing sparkle and depth. Size is approximately 20mm x 150mm.