ID OF TREATED LABORATORY-GROWN AND NATURAL DIAMONDS

Scientific Program

Instructors: BRANKO DELJANIN, DR TAIJIN LU, DR ALAN COLINS, DR ALEXANDER ZAITSEV, MIKKO ÅSTRÖM, DR THOMAS HAINSCHWANG

LECTURES:

1. Provenance and Grading of Pink Diamonds
   January 22, 2024 – 8.30amPT, 11.30amET, 4.30pm London, Branko Deljanin
2. Chinese Synthetic Diamonds: Current Technology, Products and Detection
   February 26, 2024 – 8.30amPT, 11.30amET, 4.30pm London, Dr Taijin Lu
3. Defects of Natural and Lab-grown Diamonds
   March 11, 2024 – 8.30amPT, 11.30amET, 4.30pm London, Dr Alan Collins
4. Optical Spectroscopy of Diamonds
   April 1, 2024 – 8.30amPT, 11.30amET, 4.30pm London, Dr Alexander M. Zaitsev
5. Use of Advanced Portbale Instruments in Screening and ID of Diamonds
   April 22, 2024 – 8.30amPT, 11.30amET, 4.30pm London, Mikko Åström
6. Testing Natural, Treated and Synthetic Diamonds by Spectroscopy and Fluorescence Imaging
   April 29, 2024 – 8.30amPT, 11.30amET, 4.30pm London, Dr Thomas Hainschwang

Short Description: The optical, electrical and thermal properties of diamond are influenced by small concentrations of defects. We will explain how research using optical spectroscopy has led to determine whether the colour of a diamond is natural, as-grown or has been produced by treatment.

Program aims:This program is for diamond dealers, gemmologists, appraisers and retailers to help them to understand increasing number of detection instruments and machines on the market that use different methods for screening/detection of diamonds.