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His analyses of some of the newer and less mainstream gemstones such as tanzanite , tsavorite, and Paraiba tourmaline are particularly welcome additions to the gemological literature.
Some of the highlights are a 220-pound, 500,000-carat golden sapphire, one of the world's largest; a 4,360-carat ‘rainbow’ calcite; and the world's largest tanzanite set in a tiara with one thousand diamonds.
The chain was silver and the pendant was made of ruby and specks of tanzanite were embedded in the crystal's casing.
For gem enthusiasts, a remarkable 201-carat faceted tanzanite and an equally outstanding faceted 53-carat tsavorite will be just two of the exciting African gemstones featured at the show.
The traditional kundan work has also been embellished with semi-precious and precious stones and beads such as tourmalines, tanzanites , opals, aquamarine and peridots.
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