Photoatlas 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 ArticlesAGA Conference Report
The Accredited Gemologists Association held its annual winter Conference in Tucson on Wednesday February 4. The successful conference featured several speakers from the International gemological community. American Gemological Laboratories Vice President Christopher Smith this years…
Featured ArticlesGemstones, A complete color reference for precious and semiprecious stones of the world
The book begins with a brief lesson on the technical aspects of gems including definitions of minerals, crystals, gems, metals, and the various properties of gems (R.I., birefringence, dispersion, S.G., hardness, cleav- age, etc.). While…
Book ReviewUnderstanding the Burma Embargo
Cecilia Gardner, President, CEO & General Counsel for the Jewelers Vigilance Committee hosted an informational presentation on the “The Tom Lantos Block Burmese JADE Act of 2008.†The program was offered in cooperation with the…
Featured ArticlesDiamonds in Brief
Not a surprise the economy woes are dragging down diamond prices further after a bleak holiday season. Large diamonds hit the hardest after speculation drove prices up in 2008. Rough imports hit a three-year low…
Diamond Market