Topaz – Natural, Faceted, Blue

A topaz can make a beautiful ring stone. However, a jeweler must set it carefully to avoid putting pressure on its internal cleavage plane, which could cause the gem to split in two. Protective settings, like the bezel shown here, will hold a topaz securely and safely. Photo by Mauro Cateb. Licensed under CC By 2.0.

Article: An Introduction to Gemology