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Wednesday, September 16
 

10:15am EDT

Luminescence – A Hugely Underrated Physical Property in Gem Testing
Wednesday September 16, 2026 10:15am - 11:15am EDT
For many in the gem trade, luminescence is nothing more than the observation of the glow that gemstones exhibit under a UV lamp used in gemology, with limited use such as the distinction of natural and synthetic spinel. But fluorescence is a property of much more importance used in a wide array of applications. In the past three decades a large variety of luminescence-based gem-testing methods have been developed, from imaging to spectroscopy using all sorts of excitation sources. Today, luminescence-based testing is extensively used for diamond testing but also for a wide range of other gem species such as corundum, spinel, beryl and many others. This presentation offers an insight into the world of gemstone luminescence, with amazing images, surprising science, and convincing results.
Speakers
avatar for Thomas Hainschwang

Thomas Hainschwang

CEO, GGTL Laboratories
I am Director and co-founder of GGTL Laboratories (GGTL Laboratories Liechtenstein). I have founded Gemlab (Liechtenstein) in 1996 and have joined a very close collaboration with GemTechLab in Geneva in 2011, through which GGTL Laboratories emerged, with the three member labs in Liechtenstein... Read More →
Wednesday September 16, 2026 10:15am - 11:15am EDT
Olympic A

11:45am EDT

The New AGS Appraisal and Report Standards
Wednesday September 16, 2026 11:45am - 12:45pm EDT
Appraisal Standards Subcommittee Chair Joel Hassler, ACGA, will go over some of the highlights and details of the new Appraisal and Report Standards passed by the AGS International Board of Directors earlier this year.
Speakers
avatar for Joel Hassler, ACGA

Joel Hassler, ACGA

Owner, Von Hasle Jewelers
Joel started in the industry in 2000, earning his CGA in 2003. In 2018, Joel was chosen as one of the two new CGA Instructors to take over for Cos Altobelli, ECGA. Joel has been a presenter on appraisal and store operations topics at AGS Conclave since 2018. He is a past AGS Board... Read More →
Wednesday September 16, 2026 11:45am - 12:45pm EDT
Olympic A

3:00pm EDT

What Every Jeweler Should Know About Precious Metals Metallurgy
Wednesday September 16, 2026 3:00pm - 4:00pm EDT
While jewelers are trained in karat, color, and metalworking techniques, many would appreciate and benefit from a more in-depth understanding of metallurgical principles and the properties specific to the precious metals they work with and sell every day. Knowing the underlying concepts will illuminate issues that are common at the bench, at the sales counter, and in the customer’s long-term satisfaction.

This presentation explores precious metals metallurgy, the mechanical properties of various jewelry alloys, the impact of casting techniques on quality, and the anatomy of common casting defects. Additional highlights will include the metallurgical impact of various bench techniques and tips for using your new technical knowledge at the sales counter.
Speakers
avatar for Joel Meltzer

Joel Meltzer

Director of Manufacturing, TechForm Advanced Casting Technology, LLC
Joel Meltzer is the Director of Manufacturing at TechForm Advanced Casting Technology. Joel studied art in many different forms, from large-scale sculpture to printmaking, but fell in love with jewelry making while living in Tucson, Arizona. He received his BFA with a concentration... Read More →
avatar for Silas Morgan

Silas Morgan

Director of Business Development, TechForm Advanced Casting Technology, LLC
Wednesday September 16, 2026 3:00pm - 4:00pm EDT
Olympic A

4:30pm EDT

Designing Jewelry for Casting Success – From Concept to CAD to Efficient Finishing
Wednesday September 16, 2026 4:30pm - 5:30pm EDT
Computer Aided Design or “CAD” offers infinite design possibilities and invites infinitely small detail, but we can’t lose sight of the laws of physics and material science! A design looks great blown up on the screen, but how will that detail translate to metal?

This session will provide clear guidelines for casting success as we discuss best practices for: minimum wall thickness, casting holes, dimensional tolerances, shrink rates, feature radius, differences in metal flow by alloy, hallmarks, finishing access, and the dreaded “Zoom of Doom” that could mislead anyone into thinking you can cast 0.01mm features.
Speakers
avatar for Joel Meltzer

Joel Meltzer

Director of Manufacturing, TechForm Advanced Casting Technology, LLC
Joel Meltzer is the Director of Manufacturing at TechForm Advanced Casting Technology. Joel studied art in many different forms, from large-scale sculpture to printmaking, but fell in love with jewelry making while living in Tucson, Arizona. He received his BFA with a concentration... Read More →
avatar for Silas Morgan

Silas Morgan

Director of Business Development, TechForm Advanced Casting Technology, LLC
Wednesday September 16, 2026 4:30pm - 5:30pm EDT
Olympic A
 
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