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The polariscope is one of gemology’s simplest and most useful tools. With a little practice and our three-part polariscope guide, you’ll…

An assembled gemstone is constructed from two or more combined materials. Gemstone doublets and triplets, intarsias, and rhinestones are all…

Some people make distinctions between different kinds of synthetic or lab-grown gems. In fact, you may even find different definitions of synthetic…

Anyone studying spinels will soon read that, historically, red spinels have been misidentified as rubies. In fact, the most famous red spinels…

Spinels may be well-known for their red hue. However, spinel gemstones come in many more colors. They also occur in orange, purple, violet, blue,…

For centuries, balas rubies were prized by royalty. Learn what happened after gemologists identified these gems as red spinels instead.

Available in many colors, spinels are becoming more popular with consumers. Learn how spinels form and how these gemstones get their colors.

April 27, 2023 The St. Edward’s Crown, which has played a major role in the coronation of monarchs in England for more than 350 years, has been…

Signet rings have a long history of symbolizing an alliance, union, romance, or family ties.