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Gemstone irradiation is a process in which a gemstone is exposed to artificial radiation in order to enhance its optical properties.High levels of ionizing radiation can change the atomic structure of the gemstone's crystal lattice, which in turn alters the optical properties within it. [1]
This category has the following 2 subcategories, out of 2 total. ... (5 C, 2 P) G. Greek hero cult (9 P) Pages in category "Apotheosis" The following 16 pages are in ...
Diamond cutting is the art and science of creating a gem-quality diamond out of mined rough. The cut of a diamond describes the manner in which a diamond has been shaped and polished from its beginning form as a rough stone to its final gem proportions. The cut of a diamond describes the quality of workmanship and the angles to which a diamond ...
As the diamond was grown, the carbon atoms within the molten metal would crystallize on top of the seed diamond. In Gemesis' process, a yellow gem-quality diamond up to 3 carats (600 mg) in size would grow inside the resolidified metal cylinder. The metal cylinder would then be dissolved in mild acid and the diamond crystal would be extracted.
Diamond reports from GIA (as well as other, for-profit sources) are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.
The Greek pantheon of gods included mortal-born heroes and heroines who were elevated to godhood through a process which the Greeks termed apotheosis. [1] Some of these received the privilege as a reward for their helpfulness to mankind example: Heracles, Asclepius and Aristaeus, others through marriage to gods, example: Ariadne, Tithonus and Psyche, and some by luck or pure chance example ...
Aurora Gems was founded by Harry Rodman (1909–2008) a gold refiner from the Bronx, and Alan Bronstein, a diamond dealer from New Jersey, who began collecting colored diamonds in 1979. The original 260-gem collection was on public display at the American Museum of Natural History in New York City from 1989 to 2005 in the Morgan Hall of Gems.
The Alexander Pushkin (Russian: Алекса́ндр Пу́шкин, IPA: [ɐlʲɪˈksandr ˈpuʂkʲɪn]; lit. ' Alexander Pushkin ') is a 320.65 carat [1] colorless [2] raw diamond, the second largest gem diamond ever found in Russia or the territory of the former Soviet Union (after the 26th Congress of the CPSU), and one of the largest in the world as of 2016.