Certified Diamonds

Only diamonds of the highest quality, with colour gradation between D and H, and clarity from IF to SI2, are classified as "investment diamonds", based on the scales of the “4Cs" method. The characteristics of a diamond must be stated in its certificate, issued by an international gemmological institute and as such recognised globally. Thanks to solid partnerships with the main players of the World Diamond Exchanges (Antwerp, Tel Aviv, Mumbai) and with the major international gemmological institutes, Diamanti Italia offers certified diamonds, imported directly from the main diamond centres in the world without the aid of intermediaries. All investment diamonds marketed by Diamanti Italia are certified by GIA, the Gemological Institute of America, HRD (Hoge Raad voor Diamant) or IGI, the International Gemological Institute.

The Price of Diamonds

First published in Antwerp in 1978, the Rapaport is now the only official tool that provides information on the prices of cut diamonds, which are valid throughout the world and which can be used in the gemstone trade. It is issued every Friday in New York and the prices, expressed in dollars per carat, are defined for each combination of the "4Cs". Reserved exclusively for professionals, this price list, available by subscription, allows the diamond market to move transparently and for professionals in the sector to analyse variations in the price of the raw material treated, adapting to it. For the logic of trade and the free market, a diamond sold at retail level has a retail price, which inevitably takes into account the retailer's fees, operating costs and margins, as with any distributed goods or other alternative investment goods, such as real estate or works of art.