Stone Name - Natural Moonstone, Carat Weight :- 30.00 Ct., Dimension :- 26 X 18 X 07 MM, Shape :- Oval Cabochon, Color :- White. A rough gemstone is an uncut, un-shaped gemstone of gem grade in its natural form, often found in the ground, just as mother nature made. They are often called raw gems but the proper name is rough.