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Crystalline Quartz Buying Guide

Although often overlooked, quartz is available in many styles at reasonable prices. Our crystalline quartz buying guide can help you pick your next piece.

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Denver Gem & Mineral Showcase 2017

With over 900 vendors and numerous geologic rarities, the 2017 Denver Gem & Mineral Showcase had plenty to see. Read about some highlights in our report!

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Agate Buying Guide

Decorative, patterned forms of agate are excellent natural gems. Learn more about agate's mesmerizing patterns in our agate buying guide!

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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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Amethyst Buying Guide

Long valued for its purple color and symbolic associations, amethyst is a versatile gem. Our amethyst buying guide can help you pick an excellent stone.