Science, tools, identification, treatment, valuation & grading of gems
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List of all gemstones from A-Z with in-depth information for each
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Learn more about these popular gemstones, their meaning & about buying birthstone jewelry
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Bright blue-green hues in this Caribbean apatite sparkle like tropical waters. © Kat Florence. Used with permission.
Article: 37 Blue Gemstones (Names, Pics, & More)
Credit: Kat Florence