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Satisfying the human desire for symmetry, trapiche gems have a special allure. Learn what makes these rarities so unique in our introductory article.

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A Visitor’s Guide to Colorado Gemstones

Colorado has a lot to offer gemologists and rock hunters. Before you visit, learn about Colorado gemstones as well as notable gem shows, museums, and clubs.

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Aquamarine Buying Guide

No gem evokes the blue-green colors of the sea like aquamarine. Our aquamarine buying guide can help you choose the best gemstone for your jewelry project.

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What Is Gemstone Transparency?

Gemstone transparency describes how much light passes through a gem and how it scatters. Learn what causes a gem to be opaque, translucent, or transparent.

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Precision Faceting A Story Gemstone: Gem Design

In the gem design stage of jewelry making, faceters evaluate a stone's qualities. Learn how to choose a cut for a gemstone as unique as your personal story.

A Beginner’s Guide To Common Gemstone Heat Treatments

Gemstone heat treatments can increase the beauty and value of many rough pieces. Learn how to conduct the most common procedures safely.

Gemstone Examination Lesson

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Aquamarine Color and Heat Treatment

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