When buying a jewel or diamond in one of our shops Diamond Blue or Oriane, you always receive a certificate with all the specifications of the jewel and diamond. With the purchase of diamonds from 0,30 to 0,99 ct, you can also choose to receive a certificate of HRD, GIA or IGI.

Diamonds bigger than 1,00 ct always come with a certificate of HRD, GIA or IGI.

Guarantee and maintenance

We offer lifelong guarantee and maintenance on all our jewels. Adaption, cleaning and resetting lost diamonds are done without any additional cost.