DIAMONDS

• Botswana expands into diamond manufacturing
• Large Chinese diamond
• Diamond center planned for China
• Data suggest strong, changing U.S. diamond market
• Diamond factory to open in Dubai
• G.E. synthesizes large carbon-13 diamonds
• Guinea's Aredor produces another large diamond
• Indonesian production on line
• "Nickel thermometer" for diamond exploration
• New "Royal" diamond cuts

COLORED STONES

• Hairy insect in amber...
• Czechoslovakian conference yields valuable information
• Novel chrysoberyl "cross" cat's-eye
• Attractive Tanzanian diopside
• Fine emerald/green beryl from Nigeria
• New production of demantoid garnets from Russia
• Tanzanian yellow grossular garnets
• Large tsavorite garnet from Tanzania
• "Recycled" ivory
• More on Peruvian opal
• Antique portrait ring
• More synthetics sold as natural ruby in Vietnam
• Update from Sri Lanka
• Sunstone/iolite mixture
• Update on Tanzanian mining
• Bicolored tourmaline with unusual color effect

SYNTHETICS AND SIMULANTS

• New laser crystals with gem potential
• Novel synthetic star sapphire

ENHANCEMENTS

• More on Opticon as a fracture filler
• Filled cavernous emerald crystal
• Filled synthetic emerald in parcel from Swat
• Deceptive color coating of sapphires in Sri Lanka
• More on Paraiba tourmaline simulants

Appears on pages 254-265