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Rough Diamonds – Rough Diamond Journey



The knowledge to evaluate and understand the rough diamond is in a comprehensive form. Corlia Roberts Rough Diamond Journey,

A Practical Guide is a source for the gemologist, diamond dealer, retail jeweler, or anyone that has an interest in the diamond industry.

Rough Diamonds – Rough Diamond Journey


A journey through the history of the most fascinating gem to humankind…the diamond.

The Journey Begins…

In 1997 Corlia Roberts started her journey in the Diamond Industry; by 2001 she founded the Corlia Roberts Diamond Education College now known as Corlia Roberts Institute of Diamonds. This book is an authoritative and concise guide on the subject of rough diamonds. This book is our work manual for the Rough Diamond Grading and Evaluation course.

The authors Corlia and Xanchia Roberts have spent over thirty years in the industry to bring you this unique work. Corlia Roberts is the director of the Corlia Roberts Institute of Diamonds , an internationally recognized training facility dedicated to teaching rough diamond grading and evaluation and other gemology and jewellery industry specific courses.

When combined with studies in the classroom, it equips the learner with vital knowledge to enter with confidence into the field of rough diamond evaluation and purchasing.




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    Corlia Roberts Institute of Diamonds offers a range of coaching and training courses for individuals and Retail Jewelers, developed over 20 years

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