Hrand Djevahirdjian

from Wikipedia, the free encyclopedia

Hrand Djevahirdjian (born March 29, 1880 in Constantinople , † November 24, 1947 in Monthey , Switzerland) was an Armenian gem cutter and trader and pioneer in the industrial production of synthetic crystals.

His father was Mikael. Hrand Djevahirdjian was a member of the Mechitarian College in Venice and a diamond cutter and gem dealer in Paris. After Auguste Verneuil produced the synthetic ruby ​​in the 1890s and published it in 1902, Djevahirdjian became enthusiastic about it, was able to realize his first ruby ​​synthesis using the Verneuil method in the following year and opened the first Djeva Atelier in Villeurbanne near Lyon in 1905 . In 1908 he founded a factory in the canton of Arudy in the Pyrenees. In addition to Djeva, a factory in Switzerland, one in France and one in Japan use this system. In 1914 he built a new Industrie de pierres scientifiques Hrand Djevahirdjian factory in Monthey, where he could initially use excess hydrogen from the local chemical industry ( Ciba-Geigy ). Later he produced the oxyhydrogen himself through electrolysis. Its synthetic stones were used in watchmaking as a substitute for real rubies. In 1924 he changed the company to a stock corporation, of which he was a director. From 1934 he was supported by his nephew, the chemical engineer, Vahan Djevahirdjian (1905–1997), who succeeded him after his death.

In 1960 Djeva delivered the first laser rubies to the USA.

literature

Individual evidence

  1. ↑ Ignace Carruzzo: Djevahirdjian, Hrand. In: Historical Lexicon of Switzerland .
  2. ↑ Ignace Carruzzo: Djevahirdjian, Vahan. In: Historical Lexicon of Switzerland .
personal data
SURNAME Djevahirdjian, Hrand
BRIEF DESCRIPTION Armenian gem cutter and trader and pioneer in industrial production of synthetic crystals
DATE OF BIRTH March 29, 1880
PLACE OF BIRTH Constantinople
DATE OF DEATH November 24, 1947
Place of death Monthey , Switzerland