The Corlia Roberts Institute of Diamonds

Meet the CR Team

Corlia Roberts GIA (Gemologist), PGDip (Fashion) TUT 

Founder / Director

Corlia has over 30 years of experience in all aspects of the Diamond Industry. 

Corlia’s Qualifications and Training include:

(Gemological Institute of America) GIA

  • GIA Diamond Grading 
  • GIA  Diamonds 
  • GIA Colored stone Grading
  • (GIA )Gem Identification
  • (GIA) Pearl Grading

Corlia has trained government officials, mining companies staff and sorters from most of Diamond producing countries around the globe. These companies include: Catoca diamond mine in Angola, RIO TINTO; MIBA of DR Congo;  and many private individuals. 

Corlia Roberts +27) 82 492 0055 / WhatsApp +27) 82 965 7740

Xanchia Roberts – Rough Diamond Specialist (Advanced Diamond Sorting, Evaluator, Crystallography) 

Xanchia is the head Lecturer of our digital & Physical campus.

Xanchia +27) 79 969 9580
Corlia Roberts Institute of Diamonds is a proud member of the JCSA that serves all facets of the industry including; its customers, jewellery manufacturers, jewellery wholesalers/watch importers, jewellery retailers, diamond companies, jewellery-related services, and mining houses, and other related industry bodies. We strive to be a world-class industry-supporting body that enables the development, growth and prosperity of the local jewellery industry through initiating, implementing, informing, facilitating, supporting, and representing our members locally, across the African continent, and abroad.
Jewellery Council of South Africa

Corlia Roberts Institute Of Diamonds 

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