Lab NotesGems & Gemology, Fall 2015, Vol. 51, No. 3
Color Zoned Emerald
Jonathan Muyal, Nathan Renfro, Amy Cooper
Figure 1. Left: When table-down, the stone is mainly colorless, showing some partially green overgrowth. Right: Face-up, the faceted stone displays an even and attractive dark green emerald color. Photos by Jonathan Muyal.
Figure 1. Left: When table-down, the stone is mainly colorless, showing some partially green overgrowth. Right: Face-up, the faceted stone displays an even and attractive dark green emerald color. Photos by Jonathan Muyal.
