Our Designers

The FireMark® Princess has been put to the test by the Gemological Institute of America (GIA), the world's foremost diamond authority, and the Gem Certification & Assurance Lab (GCAL), a leader in grading the light performance of diamonds. And the results are unprecedented!

  • An astounding average light return of 98%
  • "Excellent" ratings from the GIA in both Polish and Symmetry
  • "Excellent" grades for Light Performance from GCAL