Dr. Robert Chodelka

Ziemer Swiss Grown Diamonds – A tremendous opportunity for everyone involved in the diamond industry


An overview of the two diamond growth processes possessed by Ziemer Swiss Diamond Art will be provided along with the challenges associated with creating this unique gemstone. Both High Pressure High Temperature (HPHT) and Chemical Vapor Deposition (CVD) have their unique advantages for specific applications and diamonds uses in the global market. We see man made diamonds as complimentary to mined diamonds and growth of diamond opens the door for new technologies to be founded.

Impressions from the first EGS 2007 in Idar-Oberstein

Register for the European Gemmological Symposium
on May 24 – 26, 2019 in Idar-Oberstein.

During the two days’ conference, you will enjoy numerous internationally recognized and distinguished speakers, as well as a broad spectrum of subjects including diamonds, coloured stone, pearls and jewellery.

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