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Library > Gemology > Gemstone Treatments
 
Gemstone Coloration and Dyeing (13)
 
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[326] Can you sell gems based on the fact that they're not enhanced?
The marketing slogan 'All Natural' has been used for years to advertise products from cereal to shampoo. Now some gem dealers are using it to market their natural, unenhanced gem material - and to distance themselves from negative publicity over treatments. Why not take advantage of the fact that stones like garnet, peridot, and sunstone not only are unenhanced, but can't be improved with treatments? After watching the price of small-sized yellow and orange sapphires tumble because of the controversy over diffusion treatment, some gem dealers are creating a marketing niche for people who want an absolute guarantee their purchase is not enhanced.... (2003)
Complete Story

Show me more articles from: [Colored Stone]|[Marlene A. Prost]
Releated Categories: [Gemstone Treatments]
ISBN: B000060MIL

 

[213] Enhancing the stone - An Update on Diamond Treatment
A summary of the most common treatment techniques used on diamonds, how they are identified by trained gemologists, and what potential problems they present to manufacturers, retailers, and bench jewelers.... (2003)
Complete Story

Show me more articles from: [AJM]|[Suzanne Wade]
Releated Categories: [Diamonds]|[Gemstone Treatments]
ISBN: B00006K39S

 

[98] Fracture healing / filling of Mong Hsu ruby
Foreign affairs - A well-known European dealer sells a 2.5-carat Möng Hsu ruby to a major jeweler in Europe. This jeweler then sells the stone to a Japanese client through their Japanese subsidiary. The client now takes the stone to a gemological lab, which issues a report stating that the gem's fractures are filled with a foreign substance. Now the fun really starts.... (1997)
Complete Story

Show me more articles from: [RWH Publishing]|[Richard W. Hughes]
Releated Categories: [Gemstone Treatments]

 

[217] Gem Creation and Enhancement
Historically gem possession has been reserved for wealthy, royalty, or high religious leaders. It has always been human nature to want what others possess, so imitation gems have been common for some 4,500 years, in the form of glass, plastic, composites, and treated gems. It is not against the law to imitate, as long as the true identification is given. It is only fraud when imitations, natural or synthetic, are passed off as a more valuable gem at an inflated price.... (2001)
Complete Story

Show me more articles from: [Ganoksin]|[Michael Appler]
Releated Categories: [Gemstone Treatments]

 

[122] GemBits - Gemstone enhancements
Which is the best to buy: natural, enhanced, imitation, artificial or synthetic gems? The answer depends on how you plan to use it. Natural gemstones have not had anything done to them that changes their color.... (2001)
Complete Story

Show me more articles from: [Ganoksin]|[Sandra I. Smith]
Releated Categories: [Gemstone Treatments]

 

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