History
Services
Clients
Staff

History—AIGR was founded in February of 1979 as an independent gemological laboratory devoted solely to jewelry appraisals, gemological research, and monetary evaluation of gems and fine jewelry. All evaluations are backed by a micro-chemical analysis and state-of-the-art instrumentation.

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Services—AIGR offers its services for gem identification, micro-chemical analysis, grading and classifying gemstones, gem print (laser printing of gemstones), and micrography among other specific needs.

Please call us at 303-420-2369 or e-mail us using the contact form to schedule an appointment at one of our locations. We are generally available on weekday afternoons.

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Clients—AIGR is currently providing or has provided gemological services for the following companies:

• Jared the Galleria of Jewelry
• J. C. Keepsake Jewelers
• Samuels Jewelers
• Schubach Jewelers
• Zales Jewelers
• Slovaks Jewelers
• Jade House (jade importer and retailer)
• Ron Pingenot (stone cutting, wholesale)
• Kay Jewelers
• Reeds Jewelers
• Hearts Jewelers
• Marquise Diamond Centers
• Pan Pacific Investments
• Marvin Dash & Co.
• Friedlanders of Seattle
• Charles Anthony Diamond Investments
• Overland Gems
• Brendan Jewelers
• Bailey Banks & Biddle Jewelers
• Fred Meyer Jewelers
• Santa Barbara Municipal Court System (professional witness)
• Allstate Insurance Co.
• Commercial Union Insurance Co.
• State Farm Insurance Co.

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Staff—AIGR's graduate gemologists are certified by the Gemological Institute of America perform appraisals.

		Warren Pressler American Gem-trade Association (Nomenclature) National Association of Jewelry Appraisers June 1st 1982 Graduate Gemologist, G.I.A. November 6th 1978 Colored Stone Grading Course, G.I.A. October 7th 1976 Diamond Grading and Evaluation, G.I.A. November 18th 1976 General Education Pierce College 1972-74 Completion of McBeth Color Science Colorimetery & Spectrophotometry Completion of Hue Discrimination and Color Vision Testing
		Melinda Pressler GIA Graduate Gemologist diploma April 2006 GIA Gem Identification March 2006 GIA Colored Stones Course May 2004 GIA Diamonds Graduate October 2003 Assistant appraiser for AIGR since July 2002 General Education with an emphasis in Accounting Metropolitan State College of Denver 1999-2002 General Education with an emphasis in Comparative Literature Brigham Young University 1978-1979

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