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  2. Gemstone Meanings: Power and Significance of the 25 Most ...

    www.aol.com/gemstone-meanings-power-significance...

    Before buying any old gem, though, keep reading to uncover the 25 most popular gemstones—and their meanings. Agate “Agate is earthy, warm and rich,” Salzer says, noting that it exists in ...

  3. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    Opal was rare and very valuable in antiquity. In Europe, it was a gem prized by royalty. [18] [19] Until the opening of vast deposits in Australia in the 19th century the only known source was Červenica beyond the Roman frontier in Slovakia. [20] Opal is the national gemstone of Australia. [21]

  4. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    Today the gemstone trade no longer makes such a distinction. [25] Many gemstones are used in even the most expensive jewelry, depending on the brand-name of the designer, fashion trends, market supply, treatments, etc. Nevertheless, diamonds, rubies, sapphires, and emeralds still have a reputation that exceeds those of other gemstones. [26]

  5. Medieval jewelry - Wikipedia

    en.wikipedia.org/wiki/Medieval_jewelry

    Nearly all gemstones had to be imported from outside Europe, though Insular jewelry used native stones. Amber , jet , freshwater pearls and coral could be found within Europe. The modern facet -cut style of gemcutting was only developed at the end of the period, and before that stones were all cut and polished in variations of what is now ...

  6. From Seagull Poop to Plutonium: The Most Valuable ... - AOL

    www.aol.com/gold-caviar-most-valuable-substances...

    8. Grandidierite. Cost: $100,000 per gram or more Grandidierite is a gemstone that is a close cousin to serendibite, and both are extremely valuable. Grandidierite is named after its discoverer ...

  7. 18 Most Expensive Gemstones in the World - AOL

    www.aol.com/finance/18-most-expensive-gemstones...

    8. Grandidierite. Cost: $100,000 per gram or more Grandidierite is a gemstone that is a close cousin to serendibite, and both are extremely valuable. Grandidierite is named after its discoverer ...

  8. Amber - Wikipedia

    en.wikipedia.org/wiki/Amber

    Although all Dominican amber is fluorescent, the rarest Dominican amber is blue amber. It turns blue in natural sunlight and any other partially or wholly ultraviolet light source. In long-wave UV light it has a very strong reflection, almost white. Only about 100 kg (220 lb) is found per year, which makes it valuable and expensive. [44]

  9. Roman jewelry - Wikipedia

    en.wikipedia.org/wiki/Roman_jewelry

    Glass makers were supposedly so skilled that they could fool the public into thinking that glass beads and ornaments were actually gemstones. [7] When genuine gems were utilized, the stones preferred by Roman women were amethyst, emerald, and pearl. [8] Pearls were rare and expensive and were used in Roman jewelry up until the end of the Republic.

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