Gem News International Gems & Gemology, Summer 1999, Volume 35, No. 2

Summer 1999 Gem News International

            Diamond Presentations at the PDAC Conference
            Diamond Octahedra in Jewelry
            First Diamonds from the Merlin Project, Australia
            A Review of “GE-Processed” Diamonds
Colored Stones and Organic Materials
            International Colored Gemstone Association Congress
            Andradite (Including Demantoid) from Canada
            Trapiche Cat’s-Eye Emeralds
            Natural Pearls from the Northern Cook Islands
            Twelve-Rayed Star Sapphire from Madagascar
            Blue, Pink, and Purple Sapphires from Ilakaka, Madagascar
            Other Gems from Near Ilakaka
            Tanzanite Fluorescence: A Seldom-Noted Property
            Tanzanite Mining Update
            A New Source for Tsavorite
Synthetics and Simulants
            Synthetic Beryl Showing Zoned Pleochroism
            Polymer-Impregnated Synthetic Fire Opal from Kyocera
            A New Cut for Colored Stones
            Pearl Branding: “Utopia” Cultured Pearls
            Hong Kong Jewellery & Watch Fair ‘99
            Cartier at the Field Museum
            Gem Conference 99
            Jewellery Arabia 99
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