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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/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. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume.

  3. Eternity ring - Wikipedia

    en.wikipedia.org/wiki/Eternity_ring

    The concept of a diamond eternity ring was created in the 1960s by diamond merchant De Beers. [5] [6] American investigative journalist Edward Jay Epstein stated that at the time the company had a secret agreement with the Soviet Union which, in return for the creation of a "single channel" controlling the world's supply of diamonds, required the purchase of 90–95% of the uncut gem diamonds ...

  4. Diamonds as an investment - Wikipedia

    en.wikipedia.org/wiki/Diamonds_as_an_investment

    In contrast to precious metals, there is no universal world price per gram for diamonds. The industry refers to price guides. Rough diamond prices have historically been impacted by the mining companies controlling supply, most notably De Beers. However, after the dismantling of the De Beers cartel in 2001, the industry is now more fragmented ...

  5. Platinum - Wikipedia

    en.wikipedia.org/wiki/Platinum

    Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "silver". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic table of ...

  6. List of diamonds - Wikipedia

    en.wikipedia.org/wiki/List_of_diamonds

    Discovered in 2015, it is the 5th largest diamond ever discovered at the Crater of Diamonds State Park, Arkansas Identified as a Type IIa crystal, the 8.52 carat diamond was cut and polished by Mike Botha into a custom-designed 4.605 carat Triolette shape during a week long event in North Little Rock and was graded a D IF, 0 Polish & 0 Symmetry ...

  7. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    Precious metals such as gold, silver, and platinum have been used for millennia to create objects of cultural and artistic significance. In jewelry, they are a cornerstone for crafting wedding bands, engagement rings, and ceremonial adornments, often symbolizing love, commitment, and social status. [11] [12] [13]