Diamonds Botswana Produces Large Diamond DeBeers Now Marketing High-Quality, High-Pressure Synthetic Diamond Products DeBeers Offers CVD Industrial Synthetic Diamond Products "Flanders Brilliant" Cut Debuts in U.S. Sakha (Yakutia) Building up Diamond Reserves Venezuela Diamond Production Up Colored Stones Blue Cancrinite from Greenland "Emerald Matrix" from North Carolina Gemstone Globe and Maps Lapidary Art Banded Iridescent Obsidian Gems from Orissa, India Cultured Freshwater Pearls from Hanoi, Vietnam Peridot from Zabargad Island Ornamental Porphyry from Canada Natural Resin from Colombia Ruby Mining near Mahenge, Tanzania Enhancements Opticon Follow-Up Turquoise Treatment Stability Synthetics and Simulants Synthetic Corundum as a Topaz Simulant Russian Flux-Grown Synthetic Emeralds Novel Opal Simulants More on Plastic Imitation Opal ''Synthetic Opal" from Russia More on Paraiba Tourmaline Simulants Color-Zoned Synthetic Blue Quartz Nontransparent Synthetic Quartz Synthetic Spinel from Eastern Germany Announcements New Exhibit at the Royal Ontario Museum To view the full section, download the PDF above.
Diamonds Botswana Produces Large Diamond DeBeers Now Marketing High-Quality, High-Pressure Synthetic Diamond Products DeBeers Offers CVD Industrial Synthetic Diamond Products "Flanders Brilliant" Cut Debuts in U.S. Sakha (Yakutia) Building up Diamond Reserves Venezuela Diamond Production Up Colored Stones Blue Cancrinite from Greenland "Emerald Matrix" from North Carolina Gemstone Globe and Maps Lapidary Art Banded Iridescent Obsidian Gems from Orissa, India Cultured Freshwater Pearls from Hanoi, Vietnam Peridot from Zabargad Island Ornamental Porphyry from Canada Natural Resin from Colombia Ruby Mining near Mahenge, Tanzania Enhancements Opticon Follow-Up Turquoise Treatment Stability Synthetics and Simulants Synthetic Corundum as a Topaz Simulant Russian Flux-Grown Synthetic Emeralds Novel Opal Simulants More on Plastic Imitation Opal ''Synthetic Opal" from Russia More on Paraiba Tourmaline Simulants Color-Zoned Synthetic Blue Quartz Nontransparent Synthetic Quartz Synthetic Spinel from Eastern Germany Announcements New Exhibit at the Royal Ontario Museum To view the full section, download the PDF above.
