Celebrating its 30th year (Oct. 3-6, 2014), Intergem remains a calling card for the gem houses of Idar-Oberstein, Germany. Jewel of the Rhineland, this twin-city located 145 kilometers southwest of Frankfurt, has a 500+ year history in the…
Featured ArticlesIn this the fourth biennial international gem conference, speakers from varying areas of expertise offered lectures on many subjects. The program began with a historical look at the beginnings of the GemGuide, with the many…
ConferencesIntroduction: Serendibite is an extremely rare mineral with the chemical formula Ca2(Mg,Al)6(Si,Al,B)6O20. The mineral was first discovered in 1902 by G.T. Prior and A.K. Coomaraswamy at Gangapitiya, which is near Ambakotte, approximately 12 miles (20 km…
Gem NotesThe noble and ethical standing of the US Government on illegal ivory trade is certainly welcomed by the environmentally conscious both in the US and abroad. A similar ban on ruby and jade, however, doesn’t give much…
Featured ArticlesOn October 1, Rapaport officially dropped all EGL laboratory reports from his Rapnet trading network. Diamonds that previously were listed as EGL can still be listed and sold by firms but they will simply show…
Featured ArticlesWorld Diamantaires face financing crunch and Global Diamond jewelry sales reach Record Level. EGL reports banned from trading platforms. Rio Tinto celebrates 30 years of pink diamond tenders with release of unprecedented four red diamonds. It should come as…
Diamond MarketSignificant price increases have been seen in some gems. Blue sapphire continues to dominate US sales. Alexandrite prices are up. Dealers are confident in the upcoming season. Prices for many of the better recognized gemstone varieties have experienced…
Colored Stone MarketFeatured Gem....Alexandrite Prices for fine natural colored gems have achieved incredible growth during the past few years. Of the big three, emerald is particularly well positioned at the moment and has been for a few years…
*Gem Focus & Market Pulse (Free Subscriber)Although the assignment discussed here involves a cracked or crazed opal, the methodology is similar for any damaged gemstone. The appraiser only has what is in front of them, and if it is a damaged…
News ArchiveThe concept of the 4Cs is relatively well understood as they relate to classifying the quality of a gemstone. However, measurable quality is not the sole consideration for determining value. As the market grew and…
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