GemResearch Swisslab
Determination of the authenticity and country of origin of rubies, sapphires and other rare colour gemstones. Also offers gemstone reports and inscriptions.
GRS Gemresearch Swisslab Ltd
Homepage	Address	Contact	
www.gemresearch.ch/	P.O. Box 4028
Canton
Lucerne 6002
Switzerland
	N: Dr. A. Peretti
T: 41-210-31-31
F: 41-210-31-34
E: adolf@peretti.ch	
Private gemological research company focused on the characterization of high-quality gems from newly opened mines.