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2. Gold-filled jewelry - Wikipedia

   en.wikipedia.org/wiki/Gold-filled_jewelry

   Gold-filled material is made by bonding a layer of gold alloy to a base metal core (typically brass, but sometimes copper or silver). This creates a material with the appearance and durability of solid gold, but at a lower cost. Gold-filled material is used to create a variety of products, including: Jewelry: Gold-filled is a popular choice for ...

3. Gemstone irradiation - Wikipedia

   en.wikipedia.org/wiki/Gemstone_irradiation

   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]

4. Gold plating - Wikipedia

   en.wikipedia.org/wiki/Gold_plating

   Gold plated - gold layer thickness greater than or equal to 0.5 micron; Heavy gold plated / Vermeil - gold layer thickness greater than or equal to 2.5 micron; Gold plated silver jewellery can still tarnish as the silver atoms diffuse into the gold layer, causing slow gradual fading of its color and eventually causing tarnishing of the surface ...

5. How Does a Piece of High Jewelry Come to Life?

   www.aol.com/lifestyle/does-piece-high-jewelry...

   For premium support please call: 800-290-4726 more ways to reach us

6. Black Hills gold jewelry - Wikipedia

   en.wikipedia.org/wiki/Black_Hills_gold_jewelry

   Black Hills gold jewelry depicts leaves, grape clusters and vines, and is made with alloys of gold with standard yellow gold as well as green and pink gold. [ 1 ] [ 2 ] In 1980, the 8th Circuit affirmed an injunction ruling that if a manufacturer was to call its jewelry Black Hills Gold, then it must be made in the Black Hills. [ 3 ]

7. Colored gold - Wikipedia

   en.wikipedia.org/wiki/Colored_gold

   Ternary plot of different colors of Ag–Au–Cu alloys [1]. Colored gold is the name given to any gold that has been treated using techniques to change its natural color. Pure gold is slightly reddish yellow in color, [2] but colored gold can come in a variety of different colors by alloying it with different elements.

8. How to Sell Gold Jewelry When Prices Hit Historic High

   www.aol.com/finance/sell-gold-jewelry-price...

   We tell you how to make money off your gold jewelry. This was originally published on The Penny Hoarder, which helps millions of readers worldwide earn and save money by sharing unique job ...

9. Granulation (jewellery) - Wikipedia

   en.wikipedia.org/wiki/Granulation_(jewellery)

   There are three basic techniques that may be used to attach granules to a metal surface: hard soldering, fusing and colloidal soldering. The metals used in granulation are usually gold and/or silver alloys of high purity – alloys below 18 kt. gold and sterling silver being unsuitable. With each technique, the process begins with the making of ...