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  2. List of pearls by size - Wikipedia

    en.wikipedia.org/wiki/List_of_pearls_by_size

    The Pearl of Lao Tzu for a long time thought to be the largest pearl, but claims about its size and much of its history were found to be fabricated by a conman by the name of Victor Barbish. [2] Other pearls like the Centaur Pearl, most likely the largest gem pearl at 856.58 carats (171.316 g), have just recently emerged from private collections.

  3. Ring size - Wikipedia

    en.wikipedia.org/wiki/Ring_size

    In the United States, Canada, and Mexico, ring sizes are specified using a numerical scale with 1 ⁄ 4 steps, where whole sizes differ by 0.032 inches (0.81 mm) of internal diameter, equivalent to 0.1005 inches (2.55 mm) of internal circumference. The relationship of this size to ISO 8653:2016 circumference is = +, while the relationship to ...

  4. Traditional point-size names - Wikipedia

    en.wikipedia.org/wiki/Traditional_point-size_names

    ≈ 1.058 mm: Excelsior [10] [b] Minikin [10] Diamant: Brillant [8] Viertelcicero: Kwart cicero ⁠3 + 1 / 2 ⁠ ≈ 1.235 mm: Ruby Brilliant [12] 4 ≈ 1.411 mm: Brilliant Perle: Diamant Halbpetit [8] Robijn Diamant Halve petit ⁠4 + 1 / 4 ⁠ ≈ 1.499 mm: Gem ⁠4 + 1 / 2 ⁠ ≈ 1.588 mm: Diamond 5 ≈ 1.764 mm: Pearl Parisienne Sédanoise ...

  5. List of rubies by size - Wikipedia

    en.wikipedia.org/wiki/List_of_rubies_by_size

    Uncut size Cut size Location Ref Maharlika Star Ruby India: 10,820 carats (2,164 g) Philippines: Liberty Bell Ruby: Burma: 1976 [a] 8,500 carats (1,700 g) Stolen and still missing [2] Neelanjali Ruby: 1,370 carats (274 g) Prince of Burma: Burma: 1996 950 carats (190 g) Rosser Reeves Ruby: Sri Lanka: 138.7 carats (27.74 g) National Museum of ...

  6. United States Mint coin sizes - Wikipedia

    en.wikipedia.org/wiki/United_States_Mint_coin_sizes

    This chart shows all of the coin types, and their sizes, grouped by coins of similar size and by general composition. ... 14 mm 0.8 g 0.750 fine 1851–1853 14 mm 0. ...

  7. List of emeralds by size - Wikipedia

    en.wikipedia.org/wiki/List_of_emeralds_by_size

    Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium and sometimes vanadium. [1] Beryl has a hardness of 7.5–8 on the Mohs scale. [1] Most emeralds are highly included, [2] so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.

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