Chemical Composition
Grouping - 3 number
Semi Assortment - 7 number
Full Assortment - 14 number
Colour Grading - 6 shade
Natts Assortment - 7 number
Valuation of White. 1.b. natts Diamond, Diamond Trading
Rules & Traditions of DiamondRejection Separation, Instruments for grading.Estimating Weight of Studded Diamond (gauges), Identification of Real Diamond, C.B.N.