THE NATURAL GEM
NATURAL COLORED GEMSTONES
FINE AND FANCY DIAMONDS
Imprint
WORLD'S FIRST
INVESTMENT FUND FOR 
NATURAL GEMSTONES
Incrementum AG has launched the world's first investment fund for coloured gemstones in Liechtenstein with Dr. Thomas Schröck as advisor. 

It is an AIR closed end fund aimed at professional investors. 

Here is an interview from Commodity TV with Dr. Thomas Schröck. 
Neither the video nor this text constitutes an offer for subscription.
 
(Video in german language)
Interview with Dr. Thomas Schröck about the world's first investment fund for coloured gemstones