I am probably the oldest known green pigment.
Yet, there's hardly a gemologist who doesn't own at least one specimen.
And congratulations to our winner.
My name is based on my original homeland.
A true son of the Russian soil that was a favorite of Carl Fabergé.
This quartz offers two for the price of one, only at a higher cost.
Test your knowledge.
THERE’S AN EGYPTIAN legend that when my family made its way to the surface of the earth we passed over a rainbow and in doing so...
A Minneapolis gallery manager is our winner this month.
Lots of correct answers, but only one winner — Jerrod Nutt of Thacker Jewelry in Lubbock, TX.
I was the "it" stone of 2015. Who am I?
Congratulations to our winner, Stephanie Watkins from Marshall Granger Jewelers.
Color, luminosity, hardness and rarity — I've got it all.
Way to go, Kim Hatchell, sales manager at Galloway & Moseley in Sumter, SC.
Me, and my cousins, make up much of the earth's crust.
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