Herbert 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 ReviewInterest 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 ArticlesOld European cut diamonds seem to be bucking the trend of recent lower diamond prices as we have seen with many categories of round diamonds. Dealer to dealer pricing of the old European cuts may…
Market TrendsWe have only modest expectations for the holiday season. Less expensive gems such as garnet and quartz are the gems of choice this season offering more choices than just the big three. However, better commercial…
Colored Stone MarketIt'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 with successful conferences of all genres, attendees look forward not only to interesting presentations, but also to interacting with colleagues from the far reaches of the globe with whom one can exchange ideas and…
Gem Market NewsJadeite is a sodium aluminum silicate mineral which has a polycrystalline structure. The hardness is 6.5-7 on the Mohs’ scale, the average specific gravity value is 3.33, and the refractive index is approximately 1.66. The…
*Free Featured ArticlesThe summer months are traditionally a time of restrained retail sales activity for the jewelry industry. This year was consistent with that trend. As the industry transitions into the autumn, several interesting conditions are presenting mixed…
*Gem Focus & Market Pulse (Free Subscriber)As 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 Articles