Located in North County San Diego, California, Hays Gemological Services is an independent Jewelry, Gemstone Appraisal and Gemological services company.

Contact Info
  • 250 S. Pacific St. | Suite #107
    San Marcos, CA, USA
  • phone: 760-744-1000
    fax: (760) 744-1030
Send a message

Contact Hays Gemological Services

Do you have jewelry or gemstone related questions?

Please do not hesitate to contact us.

 Open the page contact us form