Live Online Seminar

Advanced Laboratory-Grown Diamond Seminar

Adv. LGD Seminar

Learn About the Latest Techniques to Identify Laboratory-Grown Diamonds from GIA Researchers

Now available as a live online seminar. 

Laboratory-grown diamond (also sometimes referred to as man-made or synthetic diamond) technology is moving quickly, and with more laboratory-grown diamonds available in the market, the gem and jewellery trade needs to be prepared with tools and techniques that will help them distinguish natural from laboratory-grown diamonds.

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This two-day seminar builds on GIA’s more than 60 years of scientific research into natural, treated and laboratory-grown diamonds and 90 years of GIA’s industry-leading gemmological education programmes. Participants will gain in-depth knowledge of advanced diamond identification techniques, including an up-close examination of current production of laboratory-grown diamonds and the latest detection technology.

Participants will be guided by a GIA gemmology instructor and a researcher with expert knowledge of laboratory-grown diamonds as a material, its identification and gemmological characteristics, along with the processes used by GIA’s laboratories to separate laboratory-grown diamonds from natural diamonds. Learn from illustrations, images, video and live demonstrations that let you see exactly what our experts see as they examine natural and laboratory-grown diamonds under a microscope. Participants can interact with the instructor during the seminar, and will receive a digital guidebook and other useful reference material.

Topics Include

  • Natural and laboratory-grown diamond formation, diamond defects and their analysis, (including the basic principles of spectroscopy)

  • The gemmological properties of chemical vapour deposition (CVD) and high-pressure, high-temperature (HPHT) grown laboratory-grown diamonds

  • Post-growth treatment of laboratory-grown diamond

  • The analytical instrumentation used by laboratories to identify laboratory-grown diamonds

  • Examination of sample diamonds and their features under a microscope

  • Technologies and instruments used for identification including the GIA iD100™, GIA DiamondCheck™ and the GIA UV Lamp with Viewing Cabinet.

Additional Information

  • GIA Alumni receive a 10% discount. This member benefit is available to all global GIA Alumni when registering for this seminar. Please mention your alumni status for validation when registering.

  • Previous gemmological training and/or experience recommended.


Each online seminar consists of multiple sessions over two days.

The number of attendees will be limited to ensure the best experience for attendees and instructors. New dates and locations may be added throughout the year.

  • 6-7 Oct 2021; 8 am – 4 pm Pacific Time; Researchers: Evan Smith and Sally Magana; Instructor: Jessica Kramer

Cost: $995 (GIA Alumni receive a 10% discount)


Please complete the online registration form. You will be provided with information about how to access the platform after your registration has been confirmed.




Dr Mike Breeding is a senior research scientist and manager, diamond analytical, at the GIA laboratory in Carlsbad, California. His area of research and expertise is in natural and laboratory-grown diamond defects, treatments and colour origins. Dr Breeding earned a doctorate in geology at Yale University in 2004 and earned his GIA Graduate Gemologist credential in 2005.

Dr Ulrika F.S. D’Haenens-Johansson is a senior research scientist at the GIA laboratory in New York. Her area of research and expertise is the defect physics of natural, treated and laboratory-grown diamond materials using optical and EPR spectroscopy. She earned a master’s in physics with honours at the University of Warwick, United Kingdom in 2007 and a doctorate in physics, also at the University of Warwick, in 2011. Dr D’Haenens-Johansson’s thesis was Optical and Magnetic Resonance Studies of Point Defects in CVD Diamond.

Dr Sally Magaña is a senior research scientist at the GIA laboratory in Carlsbad, California. Her area of research and expertise is in diamond physics, treatments and laboratory-grown diamonds. She earned a doctorate in chemical engineering at Case Western Reserve University in Ohio, USA in 2003. Her doctoral dissertation was studying the effects of boron and sulphur co-doping in laboratory-grown diamond grown by chemical vapour deposition. Dr Magaña's post-doctoral fellowship was at the Naval Research Laboratory in Washington, DC. Dr Magaña has been with GIA since 2006.

Dr Karen Smit is a research scientist at the GIA laboratory in New York. Her area of research and expertise is diamond geology and since joining GIA in 2014, she has been closely involved in researching the origin of natural diamonds and their colour treatments. She has studied natural diamonds from deposits around the world, including Ellendale, Australia; Zimmi, Sierra Leone; Marange, Zimbabwe; and Victor, Canada. Dr Smit earned a master’s in geochemistry from the University of Cape Town, South Africa in 2008 and a PhD in geology from the University of Alberta, Canada in 2013.

Dr Evan Smith is a research scientist at the GIA laboratory in New York. His area of research and expertise is diamond geology, including methodically characterising the inclusions found in rare diamonds. 

Dr Smith’s study on a 400 ct diamond found in Angola was the December 2016 cover story of Science magazine. He received his bachelor of applied science and master of engineering from Queens University and a Ph.D. in geology from the University of British Columbia. He carried out his postdoctoral research fellowship at GIA in 2015.

Dr Wuyi Wang is Vice President of Research and Development at GIA and has more than 20 years of research experience in diamond geochemistry and the treatments of diamonds and other gem materials. He holds a Ph.D. in mineralogy, experimental petrology and geochemistry from the University of Tsukuba in Japan and a bachelor’s degree in geology from Beijing University.

Dates, course content and participating researcher are subject to change.

Continuing education offerings by the GIA Alumni Association™ are considered avocational or recreational in nature and are not intended to prepare individuals for entry-level employment. They are non-credit bearing and do not lead to a GIA academic qualification. They are not eligible for state or federal student financial aid programmes and do not fall under the approval of the Accrediting Commission of Career Schools and Colleges (ACCSC) or the Distance Education Accrediting Commission (DEAC).