- Indepth Appraisals - Jewelry appraisals based on researched value conclusions by credentialed individual located in southern California.
- International Gemological Institute, Inc. - Appraisal services for precious gems and jewelry. Based in New York.
- Jewels By Stacy Appraisals - California jewelry appraiser serving individuals, banks and probate attorneys in the identification and valuation of fine gems and jewelry.
- Susan Eisen - Appraisal and expert witness service located in El Paso, Texas.
