Spring 1983 Gem News International
Australia: Argyle Diamond Sales Ltd Will Market Argyle Stones
Belgium: Imports into Antwerp Increase
Botswana: New Sorting Headquarters Opened
China: Discovery of 96.94-ct. Stone
Guinea: Production Scheduled to Start
Israel: Net Imports Rise
Japan: Customs Duty on Polished Diamonds Abolished
Portugal: Report on Illicit Trading
Singapore: Polishing Plant Completes First Year
South Africa: Large Diamond Recovered
U.S.: Crater of Diamonds State Park
Venezuela: Annual Output Dropping
Colored Stones
Cat’s-eye Chrysoberyl Discovered in Zimbabwe
New Equipment Improved Cutting Efficiency of Emeralds
Japan’s Export of Pearls Decreased
Amethyst Deposit Discovered in Brazil
Discovery of another Rare Taaffeite
Irradiated Topaz from Brazil
Southern California Mine Produces Many Colors of Tourmaline
Synthetic Ruby Will Soon be Marketed
Tucson, 1983
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