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2. Stonesetting - Wikipedia

   en.wikipedia.org/wiki/Stonesetting

   The proper way to set a channel is to cut a notch for each stone, but for cheaper production work sometimes a groove is cut along each channel. Since the metal can be very stiff and strong, a reciprocating hammer, similar to a jackhammer but jewelry sized, may be used to hammer down the metal, as it can be difficult to do by hand.

3. Gemology - Wikipedia

   en.wikipedia.org/wiki/Gemology

   Gem identification is basically a process of elimination. Gemstones of similar color undergo non-destructive optical testing until there is only one possible identity. Any single test is nearly always only indicative. For example: The specific gravity of ruby is 4.00, glass is 3.15–4.20, and cubic zirconia is 5.6–5.9 . So one can easily ...

4. Asterism (gemology) - Wikipedia

   en.wikipedia.org/wiki/Asterism_(gemology)

   Asterism is generated by reflections of light from twin-lamellae or from extremely fine needle-shaped acicular inclusions within the stone's crystal structure. [1] A common cause is oriented sub-microscopic crystals of rutile within the gem mineral. It occurs in rubies, sapphires, garnet, diopside, and spinel when a cabochon is cut from a ...

5. EXCLUSIVE: Inside Tiffany & Co.’s High Jewelry ... - AOL

   www.aol.com/lifestyle/exclusive-inside-tiffany...

   The store will include a whole floor dedicated to high jewelry and will host Tiffany’s 2023 Blue Book collection kickoff event sometime this summer. Best of WWD David Yurman Files Lawsuit ...

6. How do you fence stolen gems worth millions? Inside the ...

   www.aol.com/news/melt-gold-cut-diamonds-brinks...

   The St. Vincent Jewelry Center's ground-floor brims with the stores of dozens of merchants, including one whose display cases were badly damaged in September during a brazen smash-and-grab robbery ...

7. List of U.S. state minerals, rocks, stones and gemstones

   en.wikipedia.org/wiki/List_of_U.S._state...

   In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...