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In Australia, there are numerous gem shows, including an annual gem show called the GEMBOREE, which is a nationwide lapidary competition. There is a collection of gem and mineral shows held in Tucson, Arizona, at the beginning of February each year. The event began with the Tucson Gem and Mineral Society Show and has now grown to include dozens ...
The first major development in diamond cutting came with the "Point Cut" during the later half of the 14th century: the Point Cut follows the natural shape of an octahedral rough diamond crystal, [2] eliminating some waste in the cutting process. Diamond cutting, as well as overall processing, is concentrated in a few cities around the world.
^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81] ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In ...
The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance. [2]
The LSU Campus Mounds or LSU Indian Mounds are two Native American mounds of the Archaic Period, on the campus of Louisiana State University in Baton Rouge, Louisiana. Construction on the 20-foot-tall (6.1 m) mounds began more than 11,000 years ago, [2] and may have continued until 5,000 years ago. [3] [4] They predate the Great Pyramids of ...
Cutting and polishing diamonds in the Netherlands 1946. The art of cutting a gem is an exacting procedure performed on a faceting machine.The ideal product of facet cutting is a gemstone that displays a pleasing balance of internal reflections of light known as brilliance, strong and colorful dispersion which is commonly referred to as "fire", and brightly colored flashes of reflected light ...
On Friday, Feb. 10, police in Louisiana's capital city of Baton Rouge arrested two people for a mass shooting that left 12 others wounded at a nightclub in January. (Michael Johnson/The Advocate ...
Logo of the American Gem Society The American Gem Society ( AGS ) is a trade association of retail jewelers, independent appraisers , suppliers, and selective industry members, which was founded in 1934 by Robert M. Shipley.