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Spring 1991, Volume 27, Issue 1 (sold out)

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Gem Trade Lab Notes


Inscribed ALEXANDRITE

CHALCEDONY, "Turquoise" Color

Highly Conductive Blue DIAMOND

"EMERALD" with Unusual Color Zoning

More Banded LAPIS LAZULI

MOONSTONE and IOLITE Beads

PEARLS

  • From Baja California
  • Uncommon Cultured

PERIOD JEWELRY

SYNTHETIC RUBY

  • "Manufactured" Mineral Specimen
  • Flux Grown

Diffused Star SAPPHIRE Update

SYNTHETIC SAPPHIRE, with Triangular Inclusions

Appears on pages 40-45

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