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…
Tourmaline Buying Guide
Known for stunning, saturated hues, tourmaline is a colorful and modern gemstone. Read about quality factors for this gem in our tourmaline buying…
Gems Of East Africa – Mine direct gemstone suppliers
We are GEMS OF EAST AFRICA, a London UK-based gemstone dealer with our own buying office in Tanzania. Suppliers to the global gem community since…
Combining Stones in Jewelry
Combining stones can be more than adding diamond accents to colored gemstone jewelry. Explore colored stone combos and learn how to set gems within…
Watermelon Tourmaline Buying Guide
Looking for a fun summertime gem? Watermelon tourmaline adds a pop of color that’s perfect for a playful summer look. Learn about the quality factors…
What is the Usambara Effect In Gemstones?
The Usambara effect is a gemstone color change phenomenon distinct from pleochroism or the alexandrite effect. Tourmaline and other species…
Gemology Cheat Sheets
These gemology cheat sheets review gem color and clarity grading, specific information on evaluating diamonds and opals, and basic gem identification…
Gemstone Visual Examination Quizzes
A visual examination is the first step to identifying a gemstone. These quizzes will help student gemologists learn to recognize what they might…
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