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Jewelry Material: Gemstone

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Obsidian, Rainbow
Obsidian, Rainbow
Rainbow obsidian is a subtle gemstone, only showing its colors in bright light. Learn more about the history and properties of this volcanic glass.
Obsidian, Black
Obsidian, Black
Discover the history and properties of black obsidian, from ancient tools to modern jewelry. Learn how this volcanic glass has shaped cultures and design
Garnet, Tsavorite
Garnet, Tsavorite
Explore the captivating journey of tsavorite—from its geological origins and rich metaphysical symbolism to its exquisite use in modern jewelry design.
Gemstones Around the World
Gemstones Around the World
Where do gemstones come from? Discover the origins of your favorite gemstones from around the world (or beyond).
DIY Energy Bracelets Are As Easy As 1-2-3
DIY Energy Bracelets Are As Easy As 1-2-3
Energy bracelets are more than just jewelry. Take advantage of this sought-after jewelry style and make energy bracelets to sell online or at craft fairs as meaningful gifts.
The Gemstone Information Manual by the American Gem Trade Association
The Gemstone Information Manual by the American Gem Trade Association
The Federal Trade Commission Guides for the Jewelry Industry as revised April 10, 2001 are designed to prevent unfair or deceptive trade practices.
Gemstone Optical Properties
Gemstone Optical Properties
Optical properties refer to the way gemstones interact with light. Color, interference and inclusions are all examples of optical properties. The first optical property is also the most obvious—color.
Special Effects in Jewelry-Making Materials
Special Effects in Jewelry-Making Materials
The rainbow in an opal, the jardin of an emerald, the shimmering asterisk in a star sapphire—learn why gemologists call these "phenomena" or "inclusions" instead of "flaws."
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