The quality of diamonds is confirmed by a YES Certificate. Diamonds weighing 0.25 carats or more additionally have an International Gemmological Institute (IGI) or Gemmological Institute of America (GIA) certificate. In addition, every YES Ideal Diamond® receives the GemEx Certificate.

Certyfikat Instytutu GemmologicznegoIGI

In the case of YES Pearls, a special Certificate is granted, certifying their value and authenticity. We choose natural pearls, thus focusing on quality and their pure beauty. The certificate is a confirmation of all the most beautiful features of pearls.