A gemstone is the name given to a rare or otherwise highly prized mineral crystal. They are often cut and polished to make jewelry, ornaments, and clothes. Gemstones have been sought after by mankind ...

This book provides a lucid introduction to the basics of gemmology. It familiarizes archaeologists, art historians and conservators with the science of gemstones and allows them to understand the ...

One of the world’s most popular types of rough diamonds has plunged into a pricing free fall, as a growing number of Americans choose engagement rings made from lab-grown stones instead. Diamond ...

There are over 2,000 identified natural minerals. Of them, less than 100 are considered gemstones, and, of those, only 16 have any perceived importance or value. We’re going through some of our ...