Rings Engaged to be Married
High Priest with a Torch If a goldsmith, without even the benefit of a ceremony, marries an engagement ring to a wedding band, this priestly act leaves appraisers little choice but to value them as one…
News ArchivePhotoatlas of Inclusions in Gemstones, Volume 3
This could be the easiest book review that I have ever written. Buy it! This is the long awaited Volume 3 in a series of inclusion books that cover the world of gems like only…
Book ReviewColored Stone Market Report
The economy remains the big concern as consumers are feel- ing significant pressure on house-hold budgets. Unemployment and declining incomes are real concerns facing many Americans. However, in spite of the current tough news, the…
Colored Stone MarketDiamonds in Brief
The bigger they are, the harder they fall is certainly a saying that rang true in recent months in the diamond world. While we are optimistic and hoping that the diamond industry will turn around…
Diamond MarketZultanite Durability
A recent inquiry regarding the use of ultrasonic cleaners with zultanite prompted research and uncovered answers and an update to this color change diaspore from Turkey. (See Gem Market News, July/August 2006 for an in…
Gem NotesMarket Trends: Pink Sapphire
The corundum market has experienced volatility during the past few years. Prices in several varieties including ruby, blue, purple and orange sapphire have risen. However, the one standout has been the roller coaster ride of…
Market TrendsWhat’s New With Cobalt?
By now, we should all be aware of last years discovery of the use of cobalt coatings to improve the color of Tanzanite. This treatment, as reported by the AGTA-GTC and the AGL (May 23…
Featured ArticlesThe “Crown of Light” Diamond (And Other Caribbean Questions)
The story here on the "Crown of Light" diamond is part Gem Note and part Appraisers Notebook. What is it? Who is selling it? How much is it worth? Jewelers and appraisers are often quick…
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