Northwest Gemological Laboratory

Back to: Home > Lab > Trade Events

	- Mission - Operations - Appraisals - Appraisal Rates - Curriculum Vitae - Trade Events - Contact Us

Most Recent Trade/Event Participation

10/10 Chicago, IL World of Gems Conference Gem and diamond treatments, heat and diffusion treatment, pearl varieties, warranty law and industry updates.

6/10 Las Vegas, NV
JCK Las Vegas Jewelry Show Conferences/seminars
Accredited Gemologists Association (AGA)
Composite ruby nomenclature and disclosure

Trade Shows
JCK, American Gem Trade Association (AGTA),
Las Vegas Antique Jewelry and Watch Show

2/10 Tucson, AZ
Tucson Gem & Mineral Show
Conferences/seminars
Gemstone Industry & Laboratory Conference (GILC
International Colored Gemstone Association
Treatment disclosures, composite ruby nomenclature, fair trade practices
Accredited Gemologists Association (AGA)Mozambique rubies and composites, Archaeo-gemology, advanced gemological instrumentation

Trade Shows
AGTA, GLDA, Gem, Jewelry Exchange (GJX) Gem & Lapidary Wholesalers (G & LW)
Consultation to buyers at Tucson show venues

12/09 Cyberspace
Media
MSNBC - Herb Weisbaum
“Composite Rubies “ consultant

11/09 Seattle WA
Media
KOMO TV News, Herb Weisbaum
“Composite Rubies” on air interview

4/09 Chicago, IL
American Gem Society Conclave
Conferences/seminars
Diamonds GIA inclusion analysis, rough diamond evaluation, diamond manufacturing, AGS light performance Gemstones Inclusion analysis, gem corundum origin analysis, New GIA pearl grading standards

2/09 Tucson, AZ
Tucson Gem & Mineral Show
Conferences/seminars
Accredited Gemologists Association (AGA) Trade Shows AGTA, GLDA, Gem, Jewelry Exchange (GJX) Gem & Lapidary Wholesalers (G & LW), et al.

Consultation to buyers at Tucson show venues

9/08 Hong Kong, China
Hong Kong Jewellry and Watch Fair
Show tour and conferences

6/08 Las Vegas, NV
JCK Las Vegas Show
Conferences/seminars
Accredited Gemologists Association (AGA, Jewelers Circular Keystone (JCK)
Trade Shows
JCK – “Luxury” & “Premier”
JCK, American Gem Trade Association (AGTA), Las Vegas Antique Jewelry and Watch Show, Gem Lapidary Dealers Association (GLDA)

5/08 Seattle, WA
Media
KOMO TV News
“Tiffany & Co. website ripoff”
Audrey w/consumer advocate Herb Weisbaum

4/08 Seattle, WA
Media
KOMO TV News
“Selling Your Gold”
Ted w/Herb Weisbaum

2/08 Tucson, AZ
Tucson Gem & Mineral Show
Conferences/seminars
National Association of Jewelry Appraisers (NAJA)
Accredited Gemologists Association (AGA)

Trade Shows AGTA, GLDA, Gem, Jewelry Exchange (GJX) Gem & Lapidary Wholesalers (G & LW), et al.
Consultation to buyers at Tucson show venues