It is difficult to determine the sale price of loose diamonds on an international level. With no official OTC trading market, industry experts rely on credible monthly diamond pricing reports to compare price fluctuations of rough and polished stones. The most trusted worldwide diamond-pricing organization, based on international supply and demand, is the Rapaport Group and their weekly Diamond Report. Established in 1976, the Rapaport Group is an international network of companies that support the development of fair, transparent, efficient and competitive diamond markets.
The weekly Rapaport Diamond Report is one of the Rapaport Group’s most powerful influences. It has revolutionized the diamond trade by providing an independent benchmark, which the global diamond industry uses to standardize, compare and negotiate prices. The report compares GIA-specified purity, quality and weight classifications with the current international supply and demand for every GIA-classified stone available. The results of this research helps to establish the "baseline" price configuration of all Roxstate investment diamonds.
The Rapaport Diamond Report is a vital source of information for those who wish to buy or sell diamonds at fair market prices. Transactions within the diamond trade are now commonly adjusted using the "baseline" price guideline issued by the report.