News Archive

Andesine Update

In 2005, a Market Trends segment in the GMN tilted Andesine: The Next Paraiba? reported on the buzz building in the industry around this intensely red colored plagioclase feldspar appearing in the market in small quantities…

NRC Comes to Tucson

On Friday February 8, 2008 the American Gem Trade Association (AGTA) in cooperation with the Jewelers Vigilance Committee (JVC) presented an important presentation on irradiated gems in the Leo Rich Theater on the grounds of…

Coated Gems

In the early days, there were the foil backs. These synthetic stones, often nothing more than glass, had a gold colored foil coating on the pavilion that theoretically made the stone look more diamond-like. The…

What a Revolting Idea- a Cover Letter

During the 1980s, a revolution swept through the jewelry appraisal profession and the cover letter became standard appraisal practice. It seemed that every course, seminar and book endorsed the use of a cover letter. Now there…

Glass Filled Ruby

While much has been written about glass filled ruby and its sudden surge of presence in the marketplace and ease of identification, little has been written regarding the instability of this material. About a year…

Diamonds in Brief

As the final quarter comes to a close, we find the market in disarray. No one knows what to charge anymore and that makes pricing diamonds that much more challenging. Take for example a recent…