#supportthejeweller
GIA EDUCATION AND LABORATORY (PTY) LTD
Established in 1931. GIA is the world’s foremost authority on Diamond, Coloured Stones and Pearls. A public benefit, non‑profit institute, GIA is the leading source of knowledge, standards and education in Gems and Jewellery.
- The Paragon, No 1 Kramer Road, Bedfordview. PO Box 1756, Houghton, 2041.
- +27 11 334 2744
- www.gia.edu