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  2. Colored gold - Wikipedia

    en.wikipedia.org/wiki/Colored_gold

    White gold is an alloy of gold and at least one white metal (usually nickel, silver, platinum or palladium). [5] Like yellow gold, the purity of white gold is given in karats. White gold's properties vary depending on the metals used and their proportions. A common white gold formulation consists of 90% wt. gold and 10% wt. nickel. [4] Copper ...

  3. Are lab-grown diamonds 'worthless'? Experts weigh in as ... - AOL

    www.aol.com/news/lab-grown-diamonds-worthless...

    In 2023, sales for wholesale polished diamonds fell 20%. Elissa Sommers, the CEO and head jewelry designer of Los Angeles-based Elissar Couture, said she does not sell lab-grown diamonds in her ...

  4. Diamond - Wikipedia

    en.wikipedia.org/wiki/Diamond

    Diamonds can be sold already set in jewelry, or sold unset ("loose"). According to the Rio Tinto, in 2002 the diamonds produced and released to the market were valued at US$9 billion as rough diamonds, US$14 billion after being cut and polished, US$28 billion in wholesale diamond jewelry, and US$57 billion in retail sales. [110]

  5. Black Hills gold jewelry - Wikipedia

    en.wikipedia.org/wiki/Black_Hills_gold_jewelry

    Black Hills gold jewelry depicts leaves, grape clusters and vines, and is made with alloys of gold with standard yellow gold as well as green and pink gold. [ 1 ] [ 2 ] In 1980, the 8th Circuit affirmed an injunction ruling that if a manufacturer was to call its jewelry Black Hills Gold, then it must be made in the Black Hills. [ 3 ]

  6. Diamonds as an investment - Wikipedia

    en.wikipedia.org/wiki/Diamonds_as_an_investment

    Whether it is releasing capital to re-invest in more liquid stock, or generating greater margin on re-purchased diamond jewelry, repurchasing diamonds is part of an ongoing strategy for many members of the jewelry industry. In 2012, Tacy Ltd. stated that it expected $1 billion worth of recycled diamonds to be put back into the market. [26]

  7. De Beers - Wikipedia

    en.wikipedia.org/wiki/De_Beers

    Trading of rough diamonds takes place through two channels – De Beers Global Sightholder Sales [71] (GSS) and De Beers Auction Sales. [72] GSS sells about 90% of De Beers's rough diamonds, by value, and features wholly owned and joint venture operations in South Africa (De Beers Sightholder Sales South Africa), Botswana (DTCB), and Namibia ...

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