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Tanzanite
Poised between lush blue, vibrant violet, and rich purple, exotic tanzanite is found in only one place on earth, near majestic Mount Kilimanjaro.
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High-End Colored Gems
Love in Tucson: The ‘Stars Aligned’ for Geologist and Designer at GIA Alumni Party
They met in line to get into the GIA Alumni Association Tucson party – and changed the course of their lives forever.
Exceptional Freeform Tanzanite and Oregon Sunstone Rings
A family sources, designs, and carves gems for extraordinary jewelry and pieces.
Jaipur, India: The Global Gem and Jewelry Power of the Pink City
Examines Jaipur’s role as a colored stone cutting and jewelry manufacturing center, with profiles of 17 companies and their factory, trading, and retail operations.
Update on Colored Gemstone Mining in Tanzania
Reports on an expedition to many known and new Tanzanian gem localities.
Iridescent Inclusion in Tanzanite
A tanzanite displayed crystallographically aligned, vividly iridescent colors resulting from fine separations along the stone’s cleavage planes.
Pleochroism in Faceted Gems: An Introduction
Describes the phenomenon of pleochroism and its complex effect on the appearance of colored stones.
