American Gemological Appraisals

Jewelry Appraiser & Gemological Lab in Whittier
Opening at 10:00 AM
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2 years ago
1 stop shop! They can tell you what you have and how much it's worth. But then if you want to fix some jewelry or have something made your at the right shop. Friendly and very knowledgeable staff. Will be bringing my business here. Getting my soon to be wife's ring sized and fixed for our liking. Good luck!
- James T
9 months ago
The customer service is outstanding and genuine. Very helpful and they looked out for my best interest all around 5 stars!

Appraisals, Types & Services

An Appraisal is a statement as to the authenticity,quality, design & value of a piece of property, based on & supported by training, equipment & experience in the field  of jewelry appraising.  Appraisals are a written statement, independently & impartially prepared by a qualified appraiser, setting forth an opinion  of the defined value of an adequately described property, as of a specific date, supported by the presentation & analysis of relevant market information.

The public has a need for appraisals to obtain insurance, settle Federal/State inheritance, probate or estate requirements, substantiate fairness of a price and/or the gemological or craftsmanship quality of an item being or considered for purchase, confirm another appraisers valuation, determine the value of a gift or won in a contest item, divide property in a dissolution, establish collateral value, IRS Fair Market Value tax related issues, Donation, Inheritance, Casualty Loss, or Gift, estimate liquidation Value and estimate auction values in advance of selling.

Whether you seek an insurance appraisal, estate appraisal, damage evaluation, gem identification, or are looking for help regarding a new purchase or sale of a gemstone or jewelry item, AGA offers you the industry's most advanced gemological testing, laboratory, evaluation & appraisal services. Below you will find important information about the gemological lab services available through AGA. 

Directory of Services

Insurance Replacement Appraisals
Appraisals include full documentation and photographs based on the Insurance Institute of Jewelry Appraisal,  American Gem Society guidelines for a Registered Gemologist Appraiser & Certified Gemologist Appraiser, National Association of Jewelry Appraisers Code of Ethics & Standards and USPAP 2020-2021.

Jewelry & Gemstone Damage Assessment
Evaluation, documentation and representation of damaged jewelry claims, specializing in damaged diamonds and claims related damage issues. 

Gem ID & Lab Services - NAJA Accredited Gemological Laboratory
Gemstone ID and or Verification of your existing Stone to its Certificate or stated Quality. HPHT and CVD Testing Center. 

Estate Appraisals & Probate
Appraisals include full documentation and photographs based on the American Gem Society guidelines for a Certified Gemologist Appraiser Including all documentation of the insurance replacement appraisal & will have estate valuations based on market research, probate values & additional research. We will work with your attorneys or accountants to insure that you receive the proper evaluation & valuation to meet the requirements of your legal situation. 

Litigation & Dispute Resolution
For cases involving litigation &  as an expert witness. If you have a case pending where you need a solid gemological evaluation & an experienced expert witness.

Credentials & Associations
Graduate Gemologists - Gemological Institute of America (GIA), RGA - Registered Gemologist Appraiser -International School of Gemology (ISG) & Insurance Institute of Jewelry Appraisal (IIJA), GCA - Global Claims Associate, USPAP 2002 - American Society of Appraisers (ASA), USPAP 2018-19 - Appraisal Institute of America, USPAP 2020-2022, CMA - Certified Master Appraiser - National Association of Jewelry Appraisers (NAJA), CSMP - Jewelers of America (JA),  CPS - Cultured Pearl Association of America, AM - Gemmological Association of Great Britain, (Gem-A), PCGS & NGC. 

Contact Us


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  • (562) 698-4653


Get directions
7307 Greenleaf Avenue
Whittier, CA 90602

Business Hours

Tue:10:00 AM – 5:00 PM
Wed:10:00 AM – 5:00 PM
Thu:10:00 AM – 5:00 PM
Fri:10:00 AM – 5:00 PM
Sat:10:00 AM – 4:00 PM
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