During and after the Hong Kong Jewellery Fair in September the SSEF Swiss Gemmological Institute received several red spinels for testing, which were found to be flux synthetic spinels. These spinels apparently have been offered…
Featured ArticlesThe economy figured prominently into the recent changes to the fall/winter edition of the GemGuide Color. In many categories prices have held stable with spring/summer levels. The slowing market has negated some of the increases…
Colored Stone MarketIn past issues of the GemGuide Diamonds, we have witnessed big increases in diamond prices, especially in larger diamonds. Now, it appears that the diamond market may have temporarily peaked and experts are predicting that…
Diamond MarketThe first gem conference co-hosted by Gemworld and the AGTA Gemological Testing Center was a great success. Knowledge was shared by industry speakers on the title topics. The theme was Integration of Information and topics…
Featured ArticlesGold prices declined more than one hundred dollars during the 11-day period from August 4 to 15 as the dollar firmed. In the past 30 days, it has dropped nearly $200. Platinum has also been…
Market TrendsA gemologist colleague, Jim Swenton, relayed this gem note to us. Looking for a diamond for a customer, he had requested a diamond on memo from a supplier. The diamond came in with no indication of treatment…
Gem NotesA local dealer brought in the ring shown here for identification. The large sapphire mounted in a mans ring was reportedly belonging to the father of a client. The father had passed away and the…
Gem NotesThings are not always what they appear to be. In todays world, new treatments and synthetics are appearing on a more regular basis. Many of these newer treatments, imitations and synthetics are getting harder to…
Gem NotesIm So Confused Such a simple thing, yet it turns out to be somewhat complicated and controversial. At times it is a one-size- fits-all list of all the instruments the appraiser has in his or her…
News ArchiveBy now you have heard that President Bush has signed the bill that tightened sanctions against the Burmese government and effectively closed the loophole that allowed the importation of products originating in Burma into the…
Colored Stone Market