Gemological Science International (GSI) said that Jonathan Tack will join the organisation as Executive Vice…

Gemological Science International (GSI) said that Jonathan Tack will join the organisation as Executive Vice…
The International Gemological Institute (IGI) has named John Pollard Senior Director of Education. In this…
CIBJO, the World Jewellery Confederation, has announced that the gathering of its General Assembly, which…