Structure of Diploma in Gemmology
There are two parts in the examination.
a) Theory examination- two papers
b) Practical examination
To award Diploma, a candidate should pass Theory examination and the Practical examination.
According to the level of competency shown by the candidates at the examination, following grades for the Diploma will be assigned,
Diploma with Distinction (average 75% or above in all three papers)
Diploma with Credit (average 60% to 74% in all three papers)
Diploma (average 50% to 59% in all three papers)
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Gemmological Instilute of Sri Lanka