Click here for San Francisco Independent Gem and Appraisal Lab


Barbra Voltaire, F.G.G., G.G.,
Accredited Senior Gemologist, Geologist and

Independent Appraiser

is an Accredited Senior Gemologist, Geologist and Member of the National Association of Jewelry Appraisers, with over 35 years of professional experience in every aspect of the jewelry industry. My goal is to provide careful, fair and consistent grading, appraisals and valuations in a timely fashion.

All Appraisals and Gem Identifications are done while you wait!

*Minimum charge for any service is $80.

Offering independent and unbiased appraisals and gemological/jewelry services in the San Francisco Bay Area. The focus of our business is on the appraisal of fine jewelry for the jewelry trade, buying public, financial institutions, probate attorneys and the insurance industry. At your disposal is a fully-equipped

Gemological Laboratory and Reference Library
The following types of appraisals are provided:

  • Insurance
  • Report Verification
  • Gemstone Identification

My qualifications include:

  • Bachelor's Degree in Geology, with an emphasis in the mineralogy of gemstones, Minor: Fine Art
  • Graduate Gemologist, Deutsche Gemmologische Gesselschaft (German Institute for Advanced Professional Training in Gemmology)
  • Graduate Gemologist, Gemological Institute of America
  • Accredited Senior Gemologist, American Gemological Association
  • American Society of Jewelry Historians
  • National Association of Jewelry Appraisers
  • 35+ Years Professional Experience in Jewelry Appraising, Fine Jewelry Buying, Diamond Grading, Jewelry Design and Benchwork.







Learning Center Contents Diamonds 101 Pearl Information Birthstone Information Anniversary Stone List Gold: Information and Properties Platinum: Information and Properties Silver: Information and Properties Click here for a list of Services Provided List of Types of Appraisals  Available Instruments used for Diamond Grading and Gem Identification Tpes of Appraisals Offered Instruments used for Diamond Grading and Gem Identification