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Ten Rare and Expensive Engagement Ring Stones

These ten gems are some of the rarest and most desired in the world. If money is no object, consider one of these stones for an expensive engagement…

Gems and Minerals: Facet Rough or Samples?

For faceting, the distinction between gems and minerals is usually clarity. However, learn why the decision to cut may be an aesthetic or even a…

Andradite Garnet Value, Price, and Jewelry Information

Andradite is one of the most sought after garnet species. Although more sources have been discovered in recent decades, gem-quality andradites…
Advice for Determining Gemstone Value

Judging gemstone value is complex, and new gemologists can have trouble with this. These four exercises can help you learn to evaluate “bargain…
Demantoid Garnet Buying Guide

Stunning green hues and a brilliance that outshines diamond combine to make demantoids truly captivating. Read more in our demantoid garnet buying…
Aquamarine Grading and Pricing

Aquamarines are evaluated based on the Four Cs: color, clarity, cut, and carat. Learn how each factor affects aquamarine grading and pricing.…

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