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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.
(11) Diamond (4.5 pt, 1.5875 mm). Fonts originally consisted of a set of moveable type letterpunches purchased from a type foundry . As early as 1600, the sizes of these types—their "bodies" [ 1 ] —acquired traditional names in English, French, German, and Dutch, usually from their principal early uses. [ 2 ]
For example, AWG 12g is 2.1 mm, but SWG 12g is 2.6 mm. AWG 8g happens to be the same as SWG 10g. AWG 000g is 10.4 mm, but SWG 000g is 9.4 mm. In most discussions of body jewelry, sizes are specified by giving the gauge, usually abbreviated by the suffix "g", the same symbol as used for grams: "12g".
The diamond size is ~ 2 mm. Pure diamonds, before and after irradiation and annealing. Clockwise from left bottom: 1) initial ( 2 mm × 2 mm ); 2–4) irradiated by different doses of 2 MeV electrons; 5–6) irradiated by different doses and annealed at 800 °C .
Patented design of top faceting of the trillion cut diamond (Patent No. D-250,100) A trilliant cut, sometimes called a trillion, trillian, or Trielle is a triangular type of gemstone cut. The cut has many variations. It may have curved or uncurved sides. The shape of the top surface, or table, also varies. Stones typically have 31-50 facets. [1]
[3]: 3–4 In 1893 it was part of Tiffany's exhibit at the Chicago World's Fair. [4] A copy of the unmounted diamond. The gem was on loan from Tiffany & Co. to the Smithsonian National Museum of Natural History in Washington, D.C., from April 18, 2007, until September 23, 2007. At the time, Jeffrey E. Post, the museum's gem curator, said that ...
This is a partial list of the largest non-synthetic diamonds with a rough stone (uncut) weight of over 200 carats (40 grams). [1] The list is not intended to be complete—e.g., the Cullinan (formerly Premier) mine alone has produced 135 diamonds larger than 200 carats since mining commenced.
The HTC Touch Diamond, also known as the HTC P3700 or its codename the HTC Diamond, [2] is a Windows Mobile 6.1-powered Pocket PC designed and manufactured by HTC. It is the first device to feature TouchFLO 3D - a new version of the TouchFLO interface, unique to the Touch family. [3] The HTC Touch Diamond was first available in Hong Kong in ...