Dioptase is a bright green copper cyclosilicate mineral prized mainly as a collector crystal and occasional gem.

Emerald stands apart from other green gems because colour carries more weight than absolute clarity. Even stones with visible inclusions can be highly regarded when the green is vivid, lively, and unmistakably within the emerald range.

Uvarovite is the chromium-rich green garnet species known for vivid drusy crystal clusters.