Emerald — specimen 0351, photo © NMNHS
Afghanistan, Panjshir, Panjshir Valley, 35.42639°N 69.83333°E
Weight: 0.13 ct; size: 3.40 | 3.39 | 2.23 mm; shape: round; colour: light very slightly bluish green; very slightly greyish; clarity: eye clean; cut: very good; treatment: none.
Lightly coloured, very clean specimen; very good brilliant style cut. Source: Grey Weaver, Custom Facetor LLC
More information from ‘Classification’
A green variety of the beryl; coloured by chromium or/and vanadium.