How Do Tourmalines Form?
Tourmaline is a large crystalline silicate mineral supergroup that consists of many gem species that come in a rainbow of colors. Tourmaline is…
Choosing Faceting Angles
With so many recommended faceting angles, new gem cutters can have a hard time choosing one. Learn the basic guidelines and some exceptions to the…
Ultimate Diamond Buying Guide
Buying a diamond doesn’t have to be difficult. Learn everything you need to know to buy the best diamond for your engagement ring.
Lapis Lazuli Value, Price, and Jewelry Information
Lapis lazuli has been used since ancient times and remains popular today. This gemstone has been prized for its bright, blue color and used for inlay…
Identifying Synthetic Gems
Distinguishing between natural and synthetic gems is a critical skill for gemologists. Learn about gem making processes and the telltale signs…
Choosing and Orienting Rough Gemstones
Selecting and orienting rough gems can be challenging for new faceters. These tips can help you choose the right tools and resolve some common problems.…
Brian Gavin Diamonds Review
Brian Gavin Diamonds (BGD) have a reputation backed by their founder and namesake, a renowned expert in the diamond-cutting field. They…
Understanding Gem Synthetics, Treatments, and Imitations, Part 5: Gemstone Treatments
Identifying gemstone treatments is difficult even for experienced gemologists. Learn about the many different ways gem color and clarity are…
Tourmaline Gem, Price, and Jewelry Information
Discover tourmaline’s stunning colors, value, and properties. Learn why this October birthstone makes exceptional jewelry and how to identify…
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