Like a Vegas magic trick – now you see the treatment and now you don’t. On May 12, 2015 GIA issued a laboratory alert that states it reasonably suspects that approximately 500 colorless to near…
Diamond MarketJewelry shows are active but short on actual sales while treated and imitation gems grow in market share. The JCK Jewelry show is behind us now and had mixed reviews. There is no question that there…
*Gem Focus & Market Pulse (Free Subscriber)DeBeers lowers prices in rare move to help manufactures while colored gem prices remain high. The difficult profitability in the diamond polished market continues to be the main topic of concern in the industry. Rough…
*Gem Focus & Market Pulse (Free Subscriber)Since reemerging in the market after a decade long hiatus, opal from Ethiopia has generated a lot of buzz during the past six years. Anyone visiting a major gem show since 2009 has likely seen…
Gem NotesIntroduction: Vesuvianite is a tetragonal mineral with the formula Ca10Mg2Al4(SiO4)5(Si2O7)2(OH)4. As the name implies, it was named after the locality of its discovery, Mount Vesuvius, Campania, Italy. It has an interesting history in the nomenclature…
Gem NotesThe pressure on polished diamond prices is intense right now with many categories trending downwards. This is not an across the board decline, the prices of the very popular “bread and butter” categories are staying…
Diamond MarketThe mood in the colored stone market became surprisingly subdued in March as business cooled rapidly after posting strong results during February gem shows. Dealers returning after the March Hong Kong show gave contrasting reports…
Colored Stone MarketThe global gem market has seen the revival of spinel as a popular gem in recent years. Consumers are more aware of its beauty and rarity and recognize it as a gem in its own…
Market TrendsObtaining a gem’s spectrum via a handheld spectroscope can be difficult, if not intimidating for most gemology students and some practicing gemologists. However, the use of visible spectrum is vital to the proper identification of…
Book ReviewFor those who have never been to Basel, Switzerland for “Baselworld,” the world’s most impressive watch and jewelry show, this will give you a sense of the importance, or enormity, of the show. Let’s begin…
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