Gem Appraisals Unlimited, LLC

Glendora, California, USA

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Jewelry Appraiser Glendora
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About this Appraiser

Teri Brossmer completed her Graduate Gemologist training in residence at the Gemological Institute of America in 1981. Gem Appraisals Unlimited, LLC was born soon after and is now located in Glendora, CA.

Ms. Brossmer's client base is diverse, providing valuation services for many levels of law enforcement regarding seized and forfeited property as well as litigation and dispute settlement support in the legal arena, and identification and valuation for individuals seeking insurance coverage or appraisal of their jewelry for estate tax returns.

Ms. Brossmer currently serves as the Gem & Jewelry Discipline Chair for American Society of Appraisers Gems and Jewelry discipline and is an International Instructor in jewelry appraisal theory. She is very active in continuing education and is a co-developer of ASA-GJ principles of valuation courses. Ms. Brossmer also currently serves as Vice President of the board of directors of Accredited Gemologists Association.

Please use the contact links at the top of this page to contact Ms. Brossmer or visit Gem Appraisals Unlimited's website.


The Business

  • Private Practice & Trade Appraiser
  • Business mix: Mainly appraisals
    Also a Broker & Educator
  • Principal + 0 staff Appraisers
  • Mon - Fri: 9am to 5pm
  • Mobile lab & at Appraiser's office


  • Per-item and time-based fees
  • All major cards accepted
  • Full appraisal reports start at $145


  • GG
  • MGA


  • AGA, GIA Alumni

Curriculum Vitae


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Gem and diamond expert in Los Angeles


Gem Appraisals Unlimited, LLC
158 No. Glendora Av
Suite K
CA 91741

  • Accessible
  • Free, on-site
  • Visitors by appointment only
  • View large map


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