Objective:
At the end of the training program, the participant will be able to:
- Separating natural diamond from imitation and its synthetic counterparts
- Measure and weigh diamond
- Assign colour grade
- Assign clarity grade
- Determine cut grade
- Explain the content in certified diamond quality report
Content:
- Introduction to the basics of diamonds, their properties, the sources of diamond and the worldĄŻs market structure.
- The grading criteria for diamond - the 4 Cs; clarity, colour, cut and carat weight.
- Using instruments to perform diamond grading, with emphasis on the ten-power handheld loupe to grade diamond and identify diamond simulants.
- The various types of surface features and inclusions in diamond and understand how they affect the grading of clarity in diamonds.
- The colouring elements in diamonds, the colour grading system and definition and establishing colour grade by using comparison stones.
- The importance of cutting proportion and its impact on grading. Understand the various considerations for different types of shapes of diamonds.
- Learn the weighing system used and weight estimation methods.
- Understanding the different types of simulants such as cubic zirconia, synthetic moissanite, synthetic rutile, strontium titanate, and their separation techniques.
- Understand different types of diamond treatments, such as irradiation, high pressure high temperature (HPHT), surface coating, glass filling, laser drilling, and the techniques used to identify them.
- Learn the process of producing synthetic diamonds and their identifying characteristics. Introduction to the various identification methods and instruments used in separating synthetic diamonds.
- Intensive practical sessions.
|
