Joel Hassler


More than 20 Years of Jewelry and Appraisal Experience

Von Hasle Jewelers is an American Gem Society retailer and Certified Gemologist Appraiser serving Racine, Kenosha and the Milwaukee area. They offer a remarkable experience in the following jewelry services Tuesday through Friday and by appointment on Saturday: Custom Jewelry Design, New Jewelry Sales, Jewelry Repairs, Jewelry Appraisals for Insurance, Estate, and other functions. In addition to appointments at their store in downtown Racine, they can also accommodate meetings at an attorney’s office or bank vault. Trusted for their thoroughness and expertise across the industry, Von Hasle Jewelers travels to other jewelry stores across the Midwest offering appraisal services on location.

Meet Joel Hassler, Owner


  • Certified Gemologist Appraiser (American Gem Society®, 2003-2019, 2023-current)
  • Certified Insurance Appraiser (Jewelry Insurance Appraisal Institute, 2003)
  • Independent Certified Gemologist Appraiser (American Gem Society® 2019-2023)
  • Registered Jeweler (American Gem Society®, 2002)
  • Certified Gemologist (American Gem Society®, 2003)


  • Advanced Personal Property Appraiser (Jewelers Educational Foundation/American Gem Society®, 2019)
  • Graduate Gemologist G.G. Diploma (Gemological Institute of America, 2002)
  • Graduate Diamond Diploma (Gemological Institute of America, 2001)
  • Graduate Colored Stones Diploma (Gemological Institute of America, 2002)
  • AGS Way Course (American Gem Society®, 2002)
  • Appraisals I&II (American Gem Society®, 2003)


  • Certified Gemologist Appraiser Instructor, American Gem Society®
  • Session Presenter, American Gem Society® Conclave
  • Contributing Author, “Spectra” publication, American Gem Society®

Organizational Affiliations

  • Member Firm, American Gem Society
  • Chair, Appraisal Standards Committee (American Gem Society®)
  • Member, Diamond Grading Standards Committee (American Gem Society®)
  • Member, Gemological Institute of America Alumni Association

Miscellaneous Education and Experience

  • Accredited Gem Laboratory, American Gem Society®
  • Certified Pearl Specialist – Cultured Pearl Association of America (2019)
  • American Gem Society® Annual Re-certification exam
  • Color Vision screening (Biennial)
  • Various industry continuing education programs and conferences
  • Appraiser/CEO/Owner – Rasmussen Diamonds, Racine, WI 2000-2017
  • Past Board member:
    American Gem Society®
    Wisconsin Jewelers Association
    Wisconsin Guild of the American Gem Society® – Past President


All services are by appointment at our office in downtown Racine.  We can also accommodate meetings at an attorney’s office or bank vault.  Delivery services available on request.

Member American Gem Society
jewelers of america
GIA Alumni Collective Member
The Jewellery Valuers Association International Member
american society of jewelry historians