ATC Small Diamonds

(3 days, 2400.- Swiss Francs)

This course focuses on the quality check of small diamonds. This is especially interesting for members of the watch and jewellery industry. The course  teaches participants how to define and control quality criteria for small diamonds. This course is highly interactive and is concluded by the delivery of the ATC-Diamonds Certificate.

Aims of this course:

The aim of this special course is to develop a consistent quality management routine for small diamonds in the watch- and jewellery industry.

This course includes various workshops: on the authenticity tests and on the quality control of small diamonds.

Course themes:

Day 1

  • The properties of natural diamond,
  • The properties of treated diamonds,
  • The properties of synthetic diamonds (HPHT & CVD)

Introduction to diamond grading

  • Identity criteria
  • 4C’s rule – Carat weight, Colour, Clarity, Cut
  • Fluorescence,
  • Masterset


Day 2

Practice of diamond grading (plotting)

Introduction to the quality control of small diamond batches


Day 3


Sampling rules & AQL rules,

Quality control of small diamond batches including:

  • Dimensions
  • Colour
  • Clarity
  • Finish
  • Fluorescence
  • Presentation of mastersets

Information on dates & prices of courses: click here

For additional details on the content of the course please do not hesitate to contact us.