Alexandrite (Natural)

Andesine-Labradorite

Color Change Garnet

Color Change Sapphire (Natural)

Color Change Spinel

Synthetic Alexandrite (Flux / Hydrothermal)

Synthetic Alexandrite (Pulled / Verneuil)

Synthetic Color Change Corundum (Alexandrite imitation)

Synthetic Color Change Sapphire

Zultanite / Csarite / Diaspore