inclusions

Gemstone heat treatments can turn mediocre pieces into items of great beauty. Heating a gem to a specific temperature and then cooling it is a common…

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

The deep purple hue of amethyst has captivated humanity for centuries. Whether adorning royal crowns or modern jewelry, this gemstone has maintained…

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

Discover how synthetic amethyst is created, its key differences from natural specimens, and expert methods of identification in this comprehensive…

GCAL by Sarine is a US-based company that offers a diverse range of services, from diamond grading to precious metal testing, to damage and restoration…

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

Diamond testing tools have evolved. Learn how the latest devices compare when distinguishing lab-grown from natural diamonds.

Measuring mineral specific gravity and density is one way to distinguish two similar looking minerals. For example, take a garnet and ruby. The…