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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.

  3. Diamond prices are down as people spend more on travel ... - AOL

    www.aol.com/diamond-prices-down-people-spend...

    Even though rough diamond prices are falling, buying a one-carat round diamond at the store is on average 3% more expensive now than it was in January 2020, he said.

  4. 18 Most Expensive Gemstones in the World - AOL

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

    18. Platinum. Cost: $33.02 per gram Platinum is a beautiful precious metal that is in a similar category as gold and silver. All three of these metals are frequently traded in the global markets ...

  5. How Much Is a Diamond Worth? How To Find the Value of Your ...

    www.aol.com/finance/much-diamond-worth-value...

    The weight of a diamond is one of these variables that determines a diamond’s worth and is what the general public is most familiar with. The unit of measurement, called the carat, equals 200 ...

  6. Rapaport Diamond Report - Wikipedia

    en.wikipedia.org/wiki/Rapaport_Diamond_Report

    Each grid has the clarity options on the horizontal line and the color options on the vertical line. In order to calculate the price of a diamond according to the Rapaport Price List, you need to know the size, color and clarity of the diamond. The price listed based on this information is in hundreds of dollars per carat. [3]

  7. Carat (mass) - Wikipedia

    en.wikipedia.org/wiki/Carat_(mass)

    Gold fineness in carats comes from carats and grains of gold in a solidus of coin. The conversion rates 1 solidus = 24 carats, 1 carat = 4 grains still stand. [ 16 ] Woolhouse's Measures, Weights and Moneys of All Nations [ 17 ] gives gold fineness in carats of 4 grains, and silver in troy pounds [ 17 ] of 12 troy ounces of 20 pennyweight each.