Following the GIT Conference in Bangkok, a three day excursion visited legendary ruby mines in Chantaburi, Thailand and Pailin, Cambodia. This truly unforgettable experience of covering two countries within three days was a rare opportunity not…
Featured ArticlesTransparent 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 Articles2012 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 ArticlesInterest in certain phenomenal gems could be enhanced by promoting the unique characteristics that materials in this category possess to the broader market. In general, the global market has significant potential to grow as emerging…
Featured ArticlesIt's another late start to the holiday season. Diamond mining companies are reshaping how they do business and DeBeers will phase out the DTC brand among other strategies. Statistics out of Antwerp show mostly negative…
Diamond MarketAs technology marches forward so have techniques in the synthesis and treating of gemstones. Knowing how to identify these is of paramount importance to gemologists and valuers. This is why we possess the tools of…
Featured ArticlesWhen it comes to flux in ruby, there are some rather fundamental misunderstandings that are nearly uni- versal. They create a misperception of what is being done and why. The flux which is present in a…
Featured ArticlesJade has been worked by the Chinese since ancient history. Burma is the major source of fine jade. Because of the high popularity of jade, there are a number of materials that are used to…
Featured ArticlesEven though HPHT grown synthetic diamonds have been produced since 1953 (first by Asea, today by ABB in Norway) they posed little concern to the gem market because of their high production cost, clarity issues…
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