Rough Diamond World – Introduction

Various types of rough diamonds – Different origins of rough diamonds – Syndicate, Australian, Russian, South Africa, Coated, Brazilian, Cleavaz etc.

Diamond shapes & crystallography

Rough Diamond Sorting

Diamond Manufacturing Process

Diamond cutting and polishing machinery knowledge

Rough diamond shading – color grading.

Introduction to rough assortment – makeable, sawable, cleavable, resale, rejection.

Model assortment, expected yield, table & culet planning, different types of planning, ‘planning’ as per clarity, planning as per weight or expected yield.

Estimated yield & proportions.

Information on polished goods: grading, shading, assortment final & exports.

Uses of rough diamonds.

Knowledge of gauging & sieving.

Valuation of rough and market practice – words commonly used in the market.

Identification of natural rough, young diamond and synthetic rough diamonds (CVD & HPHT Rough).