DIAMONDS

• Diamond presentation 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. . .
• . . . and 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.

MISCELLANEOUS

• A new cut for colored stones.
• Pearl Branding: 'Utopia' cultured pearls.

ANNOUNCEMENTS

• Hong Kong Jewellery & Watch Fair '99.
• Cartier at the Field Museum.
• Gem Conference 99.
• Jewellery Arabia 99.

Editors:
Mary L. Johnson and John I. Koivula
 
Contributing Editors:
Dino DeGhionno - GIA GTL, Carlsbad, California
Shane F. McClure - GIA GTL, Carlsbad, California
Emmanuel Fritsch, IMN, University of Nantes, France
Henry A. Hänni, SSEF, Basel, Switzerland
Karl Schmetzer, Peterhausen, Germany

Appears on pages 142-155