Green beryl is a green beryl that does not qualify as emerald. Its color is too weak, or iron rather than chromium or vanadium mainly causes it.
In more detail
LMHC defines emerald as beryl colored mainly by chromium and/or vanadium, with medium to strong green saturation. It calls an iron-rich beryl with only low traces of chromium green beryl. LMHC is still preparing its full wording for green beryl.
On a grading report
Identified as beryl and named green beryl, not emerald.
Related terms
- Beryl: Beryl is the mineral species of emerald. Aquamarine and the other beryl colors belong to the same species.
- Emerald: Emerald is the green to bluish green variety of the mineral beryl. Chromium, vanadium or both cause its color.
- Saturation: Saturation is the strength or purity of a gem's color, from grayish or brownish to vivid.
- Tone: Tone is how light or dark a gem's color is, from very light to very dark.
- Gem variety: A variety is a subdivision of a gem species, usually by color. Ruby and sapphire are varieties of corundum, and emerald is a variety of beryl.