Swiss gemological institute

[KAC]

Here's a short radio piece on the Swiss Gemological Institute and the business of testing pearls
URL: http://worldradio.ch/wrs/news/switz...stitute-divines-pearls-from-paste.shtml?23285

Audio: http://worldradio.ch/wrs/bm~doc/20110222-pkg-gem-and-pearl-testing.mp3