Spinel

Purple gemstones are among nature’s rarest treasures, making them perfect for distinctive jewelry and impressive collections. Though…

Distinguishing natural from synthetic gems is a critical skill for gemologists. It could mean the difference between valuing a gemstone at thousands…

Many factors can contribute to a gemstone’s color. However, some gemstones can have many different colored varieties, while others only occur…

Ever since synthetic diamonds became a significant player in the wider diamond marketplace in 2018, gem news has been dominated by theories trying…

With practice and some basic tools, anyone can separate natural rubies from ruby simulants. Learn all about the most common lookalikes here.

Discover how ancient wisdom and modern science transform ordinary sapphires into extraordinary gems through four powerful enhancement techniques…

This year, sellers at the Tucson Gem Shows reported observing a markedly different energy from their clientele. Rather than chasing the next new…

Although gemstone magnetism isn’t a commonly tested gemstone property, it may be useful for making quick separations outside the lab. By Richard…

Some species of the oxide and hydroxide classes are important ore minerals while others are valuable gemstones. We will explore these diverse…