All the investment diamonds we sell come with a certificate of guarantee recognized the World over. Investment diamonds are valued according to international directives by Gemmological Institutes that guarantee and are responsible for the veracity of the declarations stated on the CERTIFICATE. Their appraisals are absolutely neutral, since, such Institutes do not, in any way, take part in the selling and buying of diamonds.

Three of these Institutes are recognized internationally: the IGI (International Gemmological Institute, in Antwerp), the HRD (Hoge Road Voor Diamant, in Antwerp) and the GIA (Gemmological Institute of America). As a rule, we deliver our investment diamonds directly from the Gemmological Institute, in a clear sealed package to avoid all falsifications, along with an identification card and a microfilm of the diamond in which all the data and the characteristics of the purchased stone are recorded. All this constitutes an indisputable guarantee the World over.