More encouraging signs for the North American gem and jewelry trade are surfacing this time in recent reports issued in Hong Kong and India. In each, market growth that is attributed to improving consumption in…
Colored Stone MarketTransparent colored gemstones are loved for their beautiful colors. How they absorb the visible light that passes through them determines their color (Figure 1). The study of light absorption by materials is called spectroscopy. Because…
Featured ArticlesLondon played host to a number of impressive events this year and the Gem-A 2012 conference with record attendance and delegates from over 20 countries, was no exception. Held in conjunction with the annual graduation…
Featured ArticlesAs we entered the new millennium, DeBeers announced that they had technology to invisibly mark the table of a diamond with anything from text to photographs. Using this focused ion beam technology, they branded and…
Diamond Market2012 was a great year for conferences. Gemworld was pleased to contribute to that with our third conference. Following a tradition that we started in 2008, every two years we are host to our own…
Featured ArticlesSlow But Steady Growth and the Rise in Meaningless Brands The market continues to experience a drought of new gem products. Exploration has been sharply impacted by the sluggish economy in the west traditionally the industry's…
*Gem Focus & Market Pulse (Free Subscriber)This market pulse is being posted less than a week before the US presidential election. It is our opinion that the results of the election will not have any significant impact on the industry. General…
*Gem Focus & Market Pulse (Free Subscriber)Like many of our Appraiser’s Notebook stories,This too was inspired by a true story. What it illustrates is the special considerations that must be accounted for with large, rare diamonds when valuing for insurance. Several months…
News ArchiveAn alexandrite set in an 18K yellow gold ring with diamonds surrounding it, was sent to Gemworld for observation due to an unusual color stain in three separate fissures. The first task was to verify…
Gem NotesHerbert F. Johnson Museum of Art, Cornell University has published one of the most remarkable gem collections of modern era, The Edward Arthur Metzger Gem Collection. Prominent author and gemologist Elise A. Skalwold co-authored this…
Book Review