The lead story discusses the price volatility associated with tanzanite through the years. The following charts illustrate this for the years since 1993. All graphs represent average prices in each category, not the high or…
Market TrendsWhile so many good things have happened to emeralds in this decade, dealers in Colombia are in danger of giving it all away. It took years to regain confidence in emerald treat- ments following the…
Featured ArticlesVegas Diamond Roundup The Las Vegas trade show is behind us now and as a barometer of the industry, it could be a rocky road ahead. The traffic was definitely down, and diamond sales were much…
Diamond MarketDespite the slowdown in sales for the U.S. jewelry industry, the colored stone market is experiencing growth. Last year was a record year for colored stone imports into the U.S. Among the leaders was emerald. Colombian…
Colored Stone MarketOur industry is known for its liberal rules when it comes to the English language. Actually, we tend to make our own rules to fit the need at the time if the English language does…
Featured ArticlesTwo years ago, we wrote about the distinct difference between natural strain in a diamond and the flash effect seen in glass-filled diamonds. Mostly, separation of the two should be easy, yet we have seen…
Gem NotesThe lead article goes into great detail regarding the fall and rise of emerald prices over the last decade plus. The graphic above illustrates this. Prices in the graph are for one carat emeralds with…
Market TrendsPigeon blood ruby. Cornflower blue sapphire. Flame red spinel. The names conjure up great images in the mind of what these gems look like, but do we really know what their color is? Are these…
Featured ArticlesAccording to IDEX trading network, global diamond prices are up slightly for the early part of the year. After a steady year in 2006, prices started to move slightly in 2007. The last few weeks…
Colored Stone MarketThe market is slightly improved as the summer approaches. Activity in the colored stone market is concentrated in the finer quality products. Prices for many varieties in this category are up 20 to 30% from…
Colored Stone Market