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Expert appraisals driven by precision, passion for the craft, and personalized service.

Headshot of Jacob Geer wearing a lab coat

About Jacob A. Geer

Jacob Geer, GIA Graduate Gemologist and Certified Member of the National Association of Jewelry Appraisers (NAJA), brings a lifelong passion for gemstones and jewelry to his work. Since completing his formal training at the prestigious Gemological Institute of America (GIA) in Carlsbad, California to become a Graduate Gemologist in 2017, he has gone on to obtain additional training and appraisal credentials to become a Certified Gemologist Appraiser with the American Gem Society, a Certified Member of NAJA, and an Accredited Senior Gemologist with the Accredited Gemologists Association.

Jacob has immersed himself in all aspects of the jewelry and gemstone industry during his career. After starting in the luxury jewelry and watch market working in sales at premier jewelry stores in the Twin Cities metro area Jacob transitioned to appraisal work for auction, liquidation, and wholesale markets during the pandemic. His varied professional experiences have afforded direct knowledge of jewelry design and repair, precious metals refining, gemstone refurbishing, curating estate collections, and more.

Jacob now draws on these varied experiences and a rich network of gem and jewelry industry contacts to serve individual and retail clients as a full-time jewelry appraiser and personal jeweler. He stays abreast of industry, market, and pricing trends and appraisal best practices by attending major industry shows and pursuing continuing education through professional conferences and webinars. He is committed to staying current on the latest research and technological advances in the field of gemology to provide clients with trusted services that exceed expectations.

In his spare time, Jacob enjoys hunting for rocks and minerals, metal detecting, visiting state and national parks, and learning about the history of gemstones and jewelry

  • When it comes to appraisals, accuracy is everything. Jacob scored a 4-Superior on the Farnsworth-Munsell 100 Hue Test, placing his performance in the top 16%. This exceptional visual acuity makes him an authority on color grading diamonds and gemstones. Jacob also leverages his network in the gem and jewelry industry at all market levels to make precise valuations.

  • Meeting the individual needs of clients is a cornerstone of Geer Gemological Services’ business model. Jacob takes the time to build relationships with his clients so he can understand their needs and customize his services.

  • Jacob specializes in the identification, history, and valuation of antique, vintage, and estate jewelry. He has a great respect for those craftsmen that used techniques that are long forgotten by today’s jewelers, without the aid of modern design software and equipment. He is committed to preserving their legacy and educating those who share his passion.

Credentials & Affiliations

Gemological Institute of America (GIA)

  • Graduate Gemologist (2017)

  • Graduate Pearls (2017)

  • Accredited Jewelry Professional (2016)

  • Graduate Diamonds (2016)

  • GIA Alumni Collective Member (2017-present)

National Association of Jewelry Appraisers (NAJA)

  • Certified Member (2023-present)

  • Member (2022-2023)

Accredited Gemologists Association (AGA)

  • Accredited Senior Gemologist (2024-present)

American Gem Society (AGS)

  • Former Certified Gemologist Appraiser (2019, recertified 2020-2024)

  • Former Vice President, Minnesota Guild (2019-2024)

  • Former Registered Jeweler (2018)