inclusions

Discovered in 1989, paraíba tourmalines are among the world’s most prized gemstones. These rare gems are renowned for showing intense blue…

Colombian emeralds can command premium prices. Jeffery Bergman separates emerald myth from fact when it comes to determining the origins of these…

How do lapidaries decide what gemstone shape to cut? Learn how inclusions, rough, orientation, and other factors can influence that decision.…

Brian Gavin Diamonds (BGD) have a reputation backed by their founder and namesake, a renowned expert in the diamond-cutting field. They…

Rare chrome tourmaline can show an emerald-like green color. With a highly desired color and tourmaline’s excellent qualities as a jewelry stone,…

Identifying gemstone treatments is difficult even for experienced gemologists. Learn about the many different ways gem color and clarity are…

Launched in 2006, online jewelry retailer James Allen is a disrupter in the diamond market that seeks to educate buyers on diamonds and colored…

The color grading standards for white diamonds don’t apply to fancy colored diamonds. Learn the GIA and Argyle grading systems and how to find signs…

Discover tourmaline’s stunning colors, value, and properties. Learn why this October birthstone makes exceptional jewelry and how to identify…