Josef Stefan
Senior Manager of the Jewellery Laboratory, senior appraiser, master goldsmith, gemmologist, diamond diploma D. Gem. G., Scientific Gemmology Certificate - SSEF, certified expert

Tel. +43-1-515 60-203, Fax -555
Mon-Fri 8.00am - 3.00pm
E-mail: juwelenlabor@dorotheum.at

Martin Fuchsberger
Appraiser, horologist, goldsmith, gemmologist, diamond diploma D.Gem. G., certified member of the Austrian Gem. G. and D. Gem. G.

Tel. +43-1-515 60-273, Fax -555
Mon-Fri 8.00am - 3.00pm
E-mail: juwelenlabor@dorotheum.at