Gemstones with unusual optical effects are defined as phenomenal gems. Their unusual effect can designate a variety within a species and add value.
*Gem Focus & Market Pulse (Free Subscriber)Most retailers and appraisers in the Western World lack the knowledge to judge the quality parameters and value of natural untreated jadeite. This is because natural jadeite material in all qualities is scarce in the western marketplace, and because they lack literary references to rely upon.
*Free Featured ArticlesHowever, lab grown diamond producers debate the long-term pricing and do not think prices will tumble.
Lab-Grown Diamond Price IndexClarity enhancement; probably the oldest gem treatment method...
*Gem Focus & Market Pulse (Free Subscriber)The diamond market around the world, and especially in North America, has entered unknown waters as far as accurately predicting what’s coming down the pipeline. Diamond “experts” continually weigh in with their predications of what…
Diamond MarketColor modification of ruby and sapphire by heat treatment processes has a long tradition in the gemstone industry. First written reports by Bhojarajah and Al Beruni date back to the 11th century (see Hughes, 2017),while…
Featured ArticlesSometimes the most basic of questions is the best question. For example, why do markets exist? Most everyone has heard about “supply and demand.” To be blunt, one should view the relationship between supply…
The Appraiser's NotebookIn Asia, jewelers report improving sales as consumers spend on luxury. In the USA, cautious mood greets traders as more markets emerge from COVID-19 closures. A range of colors are expected to see good demand…
Colored Stone MarketTourmaline is one of the most popular and complex gemstones and has a long history. Due to its rich chemistry and growth conditions, it comes not only in many different colors but also in unusual…
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