Fluorite was the first mineral that was seen to “fluoresence,” or glow, under ultraviolet light ... pale-green form of quartz and is becoming popular as an inexpensive green gem for jewelry.

Specifically, rubies absorb light in the yellow-green spectrum and reflect ... it a favorite among collectors and jewelry ...

By Amy Elliott Two years ago, the jewelry designer Vanessa Fernández found herself admiring a curious green stone at a gem show in Tucson, Ariz. The Miami jeweler recalled during a recent video ...