GIA (Gemological Institute of America)
- Fine jewellery
- Lab grown diamonds
- Loose gem stones
- Marketing your business
- Natural diamonds
- Tools and equipment
Established in 1931, GIA is the world’s foremost authority on diamonds, colored stones, and pearls.
A public benefit, nonprofit institute, GIA is the leading source of knowledge, standards, and education in gems and jewelry.
Address104 Great Russell Street