San Francisco Gem and Appraisal Lab

Independent appraiser, gemologist, and jewelry historian serving the San Francisco Bay Area for over 35 years. My goal is to provide careful, fair and consistent grading, appraisals and valuations in a timely fashion. Contact us today to schedule an appointment.

An accredited senior gemologist.

Barbra Voltaire, F.G.G, G.G is an Accredited Senior Gemologist with the American Gemological Associated. In addition, she is a graduate gemologist of both the Gemological Institute of America and the German Institute for Advanced Professional Training in Gemmology. She also holds a Bachelors of Science in Geology with an emphasis on the mineralogy of gemstones.

Appraisals while you watch.

All appraisals are carried out on a while-you-watch basis in our fully equipped gemological laboratory in the Outer Richmond District of San Francisco. This means that you will never be without your jewelery and it is hoped that you find your appointment interesting and leave with a deeper understanding of your treasured possessions.

Trustworthy gemstone identification.

In addition to the standard gemological equipment, Barbra makes use of advanced instrumentation such as the GemmoRaman and a Photoluminescence Spectrometer, specifically built for gem testing and analysis. This cutting-edge technology married with her knowledge and experience ensures consistent, accurate, and reliable identification and grading of gem materials.

Appraisals Explained

An appraisal document is written for a specific intended use and it serves as a permanent record. It has to be determined what the purpose of the appraisal is. Following are some of the reasons people need appraisals. San Francisco Gem Lab specializes in Insurance Replacement Documentation and can refer you to other appraisers if you need other services.

Insurance Appraisals

We do valuations for all insurance related resons, including claims and scheduling.

Damage Reports

If your jewelry has been damaged, we can do a valuation to determine its current or retail replacement value.

Purchase Value Confirmation

We can provide you with an accurate fair market value of your jewelry purchase.

Quality Confirmation

Unsure about what kind of stones are in your jewelry? We can analyze the chemical makeup of your stones so you know exactly what they are.

Get in touch

San Francisco Gem Lab is located in the Outer Richmond district of San Francisco and is by appointment only. Please email or call today to schedule an appointment. Email is preferred. All appraisal work is done while you watch, meaning none of your jewelry is ever stored on the premises.

  • Address

    Outer Richmond District
    San Francisco, CA 94121
  • Email

    info@sfgemlab.com
  • Phone

    (415) 867-1853
  • Social