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  2. 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 ...

  3. List of jewellery types - Wikipedia

    en.wikipedia.org/wiki/List_of_jewellery_types

    This page was last edited on 6 February 2025, at 11:20 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  4. Jewellery - Wikipedia

    en.wikipedia.org/wiki/Jewellery

    A gold, diamonds and sapphires red guilloché enamel "Boule de Genève", a type of pendant watch used as an accessory for women. An example of an object which is functional, artistic/decorative, marker of social status or a symbol of personal meaning. Humans have used jewellery for a number of different reasons:

  5. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    As a stunt to publicise the 99.999% pure one-ounce Canadian Gold Maple Leaf series, in 2007 the Royal Canadian Mint made a 100 kg 99.999% gold coin, with a face value of $1 million, and now manufactures them to order, but at a substantial premium over the market value of the gold. [3] [4]

  6. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    Spanish emerald and gold pendant at Victoria and Albert Museum Enamelled gold, amethyst, and pearl pendant, about 1880, Pasquale Novissimo (1844–1914), V&A Museum number M.36-1928. Gemstones have no universally accepted grading system. Diamonds are graded using a system developed by the Gemological Institute of America (GIA) in the early ...

  7. Diamond - Wikipedia

    en.wikipedia.org/wiki/Diamond

    Diamonds sold through this process are known as conflict diamonds or blood diamonds. [131] In response to public concerns that their diamond purchases were contributing to war and human rights abuses in central and western Africa, the United Nations, the diamond industry and diamond-trading nations introduced the Kimberley Process in 2002. [142]

  8. Here's the secret use behind the diamond-shaped patches on ...

    www.aol.com/lifestyle/2017-02-22-secret-use...

    Whether you've noticed it or not, these diamond-shaped patches are actually fairly common patchwork on backpacks. The outlet or pig snout-shaped design is sewn onto most Herschel and a lot of ...

  9. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    Many coins throughout history were made of gold, silver and copper. Silver: Gold: Iron: Numerous Chinese cash coins were made of iron, with the first being issued by the Han dynasty in 118 BCE. From 1942 through 1952, some of the Swedish krona coins – such as the 1, 2 and 5 öre – were made of iron. Lead: Most commonly seen in southeast ...