Diamond Jewelry Education
An Introduction to the 4C’s of Diamonds: Diamon...
Until the 1940s there was no universal way to judge diamond quality, and each company or country would have their own system. The founder of a GIA (Geological Institute of America)...
An Introduction to the 4C’s of Diamonds: Diamon...
Until the 1940s there was no universal way to judge diamond quality, and each company or country would have their own system. The founder of a GIA (Geological Institute of America)...