Transcript
September 2005 Vol. 14 No.3
The Gem Testing Laboratory
1925-2005
m testing laboratory in the world ...
... and the inspiration for many others
Laboratory testing of Gemstones and Jewellery, Diamond Grading
September 2005 Vol. 14 No.3
The Gem Testing Laboratory
1925-2005
m testing laboratory in the world ...
... and the inspiration for many others
Laboratory testing of Gemstones and Jewellery, Diamond Grading