There are two major types of cultured pearls; freshwater and saltwater…

There are 6 main factors to keep in mind when determining a pearl’s quality and worth: Nacre, Luster, Surface, Shape, Color, and Size. When it comes to quality pearls, like most things, size does matter. A critical factor in a pearl’s value is its size, with the larger pearls generally being the more prized.

Pearls are unique among gemstones, being the only ones found within a living creature

Rubies and sapphires are the same minerals: corundum, with different trace

Whether blue, green, yellow, colorless, or pink, their chemical and physical properties

Geodes are technically sedimentary rocks since they are the result of the action of…