【Lucerne, Swi】About the GIA Gem Project and the Gem Collection of Dr. Edward J. Gübelin
Editor’s NoteThe pioneering work of Dr. Edward J. Gübelin established the modern scientific foundation for gemology. His vast personal collection,…
Editor’s NoteThe pioneering work of Dr. Edward J. Gübelin established the modern scientific foundation for gemology. His vast personal collection,…