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The Star of India, one of many gems stolen in a 1964 heist; it was later recovered from a bus locker. The Mignone Halls replaced two permanent exhibits, the Guggenheim and Morgan Memorial halls, which previously displayed specimens from the museum's mineral and gem collections.
In mineral exploration, salting is the fraudulent practice of adding valuable metals and gemstones, particularly gold or diamond, to ore samples from a mine to inflate the apparent value of the deposit.
National Gem and Mineral Collection; Natural History Museum of Los Angeles County; Natural History Museum, Vienna; R. ... Society of Mineral Museum Professionals; U.
A variant of this scam exists in Mumbai, India. [citation needed] The shill says loudly to the dealer that his cards are fake and that he wants to see them. He takes the card and folds a corner and says in a hushed voice to the audience that he has marked the card. He places a bet and wins. Then he asks the others to place bets as well.
The Hope Diamond, which Switzer helped to acquire for the Smithsonian from Harry Winston in 1958. George Shirley Switzer (June 11, 1915 – March 23, 2008) was an American mineralogist who is credited with starting the Smithsonian Institution's famed National Gem and Mineral Collection by acquiring the Hope Diamond for the museum in 1958.
The Star of Asia, a large, 330-carat cabochon-cut star sapphire in the U.S. National Gem and Mineral Collection The Hope Diamond. The National Gem and Mineral Collection is one of the most significant collections of its kind in the world. There are currently over 15,000 individual gems in the collection, as well as 350,000 minerals and 300,000 ...
The Gemological Institute of America (GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. [ 1 ] Founded in 1931, GIA's mission is to protect buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality.
The gem scam is a confidence trick performed usually against tourists. The most known version occurs in Bangkok, Thailand as well as other cities in the country. It is one of the most pervasive scams in Thailand. Most of the shops are gold or jewelry shops. The marks tend to be tourists from outside Thailand. It has been alleged that this scam ...