Spectacular Green Tourmaline Jewelry Set with diamonds, hand engraved enamel

Under the big tent of the recently concluded Gem & Jewelry Exchange show in Tucson, This was green tourmaline cut with exacting precision and an artist's eye enhanced by 18k gold, tiny round diamonds and intricately carved enamel.

The necklace is flanked by marquis-cut green tourmaline ear clips (31.90 cts.) and ring (17.14 cts.) embellished with the same 18k gold and engraved enamel, completing the set.

The jewelry is the work of two brothers of two separate companies in two cities under the same family name: Henn. The marquise-shaped gems were cut and crafted by Henn GmbH of Idar-Oberstein, Germany-arguably the world's greatest gem-cutting center; and the jewelry was created by Henn of London, in the city's famed Hatton Garden jewelry district.

Axel and Ingo co-own the two companies but they operate as separate units. Axel, the master gem carver who was manning the booth at the GJX show, explained that about 90 percent of their business involves acquiring and cutting loose gemstones.