Prong setting

Merged content from Tiffany mount to here. See Talk:Prong setting#Merger proposal.

A prong set diamond in a gold ring.

Prong setting or prong mount refers to the use of metal projections or tines, called prongs, to secure a gemstone to a piece of jewelry. A prong setting is one component of what is known to jewelers as a head, a claw-shaped type of binding (typically 3, 4, or 6 individual prongs per head) that is welded or soldered to a jewelry item in order to mount (or set) a gemstone to the jewelry item.[1][2] A common setting for diamond engagement rings, the prong setting allows light to strike a gemstone from more angles, increasing its brilliance.

Prong setting engagement rings are sometimes referred to as Tiffany setting rings, although this is a trademarked term specifically used to describe prong setting rings sold by Tiffany & Co. A 2017 $19 million lawsuit confirmed the exclusive right of Tiffany & Co. to utilize the term "Tiffany" within the jewelry sales industry.

Characteristics

General features

The head can be handmade, cast or die struck, and it is made from some type of precious metal, such as gold, silver and platinum. Heads used to prong set a gemstone come in a variety of sizes and shapes, depending on the shape of the gemstone, the size of the gemstone, or whether or not the gemstone is faceted or cabochon shaped. Common shapes of heads used in stone setting include round, oval, emerald cut, princess cut, marquise cut, pear shaped and trillian cut. V-shaped prongs are recommended for a marquise-cut or pear-shaped stone, while flat prongs are recommended for a flat-cut emerald.[1] A prong setting holds the gem securely while allowing the gem to be struck with more light and from more angles, increasing the brilliance of the gemstone.[1][2]

Drawbacks

A prong setting offers less protection to the gem than inset mounts.[1] In addition, prongs can snag on clothing or fabric.[1][2] High quality settings are less likely to snag on clothing, as the prongs are firmly attached to the gem and well finished.

Over time, prongs may get worn out or become loose.[2] Getting the ring checked regularly is a good idea in order to prevent any accidental loss of your mounted gemstone. Some effective ways include using a 10X loupe to check for gaps between prongs and gemstone, listening for sounds made by loose gemstone and taking it to a professional jeweler once every 6 months for checks.

Tiffany design and trademark

One well-known prong setting is the "Tiffany setting", a trademarked engagement ring design created by Charles Tiffany in the 1880s that has become the signature line of Tiffany & Co. engagement rings.[2][3] The Tiffany setting popularized the general use of prong setting engagement rings, and as of 2012, the trade association Jewelers of America reports that multi-prong solitare rings are the most sought-after form of engagement ring available.[4]

While some in the jewelry industry use the term "Tiffany setting" to describe multi-prong solitaire rings,[4] the Tiffany setting is a specific trademarked design of Tiffany & Co.[2] In February 2013 Tiffany & Co. filed a trademark infringement lawsuit against Costco Wholesale Corp. over Costco's practice of selling prong setting engagement rings described as "Tiffany setting" rings. The lawsuit alleged that Costco was unlawfully using the "Tiffany" trademark to describe products that were not made or licensed by Tiffany & Co. In its defense, Costco asserted that it did not infringe because the terms "Tiffany" and "Tiffany setting" were genericized by common usage to describe prong setting engagement ring.[5] However, on September 8, 2015, a federal judge ruled in favor of Tiffany & Co., rejecting Costco's generic use argument and finding that Costco's usage of the "Tiffany" name violated Tiffany & Co.'s trademark rights.[6]

gollark: Do you know how to write to the "info box"?
gollark: It's kind of weird though. They *gain* (or at least don't lose) money if there's more demand for their laser stuff. Are they that afraid of someone misusing their laserstuff?
gollark: Ħi.
gollark: If that's not a concern, opaque ones.
gollark: You can't block all possible lasers and still be able to see.

References
  1. Seto, Lori. "Engagement Ring Settings 101". theknot.com. XO Group. Retrieved October 18, 2015.
  2. "Ring Settings Guide". The Diamond Pro. Retrieved October 18, 2015.
  3. Biography.com Editors. "Charles Tiffany Biography". Biography.com. A&E Networks. Archived from the original on December 5, 2013. Retrieved October 18, 2015.
  4. Lee, Jane (October 2, 2012). "Deconstructing The Tiffany Setting, The World's Most Popular Engagement Ring". Forbes.com. Retrieved October 18, 2015.
  5. Donahue, Bill (January 17, 2014). "Tiffany Can't Kill Costco's Trademark Genericide Claim". Law360. Retrieved October 18, 2015.
  6. Raymond, Nate (September 8, 2015). "Costco sold counterfeit Tiffany engagement rings: U.S. judge". Reuters. New York. Retrieved October 18, 2015.

See also
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