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

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

    Platinum is actually 30 times rarer than gold and far more durable. Beluga Caviar. 22. Beluga Caviar. Cost: Up to $35 per gram. ... perhaps making red diamonds even rarer. Californium. 4 ...

  3. Hierarchy of precious substances - Wikipedia

    en.wikipedia.org/wiki/Hierarchy_of_precious...

    The measurement of sales of popular music starts high relative to the wedding anniversary scale, concentrating on gold and platinum (see gold album).Likewise, credit card companies usually have a "gold card" and a "platinum card" (many formerly had a "silver card" then followed by a "gold card", but due to similarity in appearance between silver and platinum these were often discontinued with ...

  4. 18 Most Expensive Gemstones in the World - AOL

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

    Platinum is actually 30 times rarer than gold and far more durable. How To Buy ChatGPT Stock: Your 2023 Guide to AI Investing ... light violet gemstone, far more rare than a diamond. The gem is ...

  5. Diamond (gemstone) - Wikipedia

    en.wikipedia.org/wiki/Diamond_(gemstone)

    The point unit—equal to one one-hundredth of a carat (0.01 carat, or 2 mg)—is commonly used for diamonds of less than one carat. All else being equal, the price per carat increases with carat weight, since larger diamonds are both rarer and more desirable for use as gemstones.

  6. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $1 million AUD, making it the largest minted coin in the world with a gold value of around $50 million AUD. [2] China has produced coins in very limited quantities (less than 20 pieces minted) that exceed 8 kilograms (260 ozt) of gold.

  7. Red beryl - Wikipedia

    en.wikipedia.org/wiki/Red_beryl

    The Utah Geological Survey estimated that one red beryl is found for every 150,000 diamonds. [1] According to Gemmological Association of Great Britain a 2 carat red beryl is as rare as a 40 carat diamond. [13] Red beryl is valued roughly the same price or higher than emerald [12] despite being a hundred times rarer. Its rarity has made it less ...

  8. 18 Most Expensive Gemstones in the World - AOL

    www.aol.com/news/platinum-gold-more-most...

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  9. Diamond color - Wikipedia

    en.wikipedia.org/wiki/Diamond_color

    For example, a "D" or "E" rated diamond (both grades are considered colorless) is much more valuable than an "R" or "Y" rated diamond (light yellow or brown). This is due to two effects: high-color diamonds are rarer, limiting supply; and the bright white appearance of high-color diamonds is more desired by consumers, increasing demand.