Diamond Market
It'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 MarketNano-polycrystalline Synthetic Diamond: Circle the Wagons or Embrace as a Gem of the Future?
As 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 NewsContemporary Jadeite Testing
Jadeite 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 ArticlesGem Market Pulse August 2012: Retail Sales
The 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)Infrared Spectroscopy in Gemstone Testing
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 ArticlesFlux Facts
When 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 ArticlesColored Stone Market
Activity is slow in most markets for colored stones and we are seeing some price corrections following years of huge increases. However, while China may be slowing down, there are some signs of improvement in…
Colored Stone MarketDiamond Market
Diamond markets slowed and price corrections followed. Long-term outlook however, is for possible increases with demand outpacing supply. Melee prices are hard to track with most production in China and India. Old European cuts gap…
Diamond MarketJade and Jade-Like Materials
Jade 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 ArticlesWatches: Fake & Genuine – How to Appraise from the Insurer’s Perspective
Gemologists are trained and experienced in recognizing gems, treatments, synthetics, and outright fakes in gems and jewelry, but detecting fake watches is a different challenge altogether. Furthermore, when a watch is determined to be genuine…
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