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Each grid has the clarity options on the horizontal line and the color options on the vertical line. In order to calculate the price of a diamond according to the Rapaport Price List, you need to know the size, color and clarity of the diamond. The price listed based on this information is in hundreds of dollars per carat. [3]
The weight of a diamond is one of these variables that determines a diamond’s worth and is what the general public is most familiar with. The unit of measurement, called the carat, equals 200 ...
Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of ...
In early 2025 diamond prices had dropped significantly from a peak in 2022; prices of natural gems in shops dropped by 26% by the beginning of 2025. Laboratory-grown diamonds had dropped by 74% since 2020. Prices were expected to continue decreasing. De Beers had started 2024 with US$2bn worth of diamonds, which it had not sold by the end of ...
The 1,109-karat diamond is estimated to sell for close to a whopping $86M, if it goes for the same price-per-karat as "The Constellation" sold for. Quite the pricey investment, but diamonds are ...
Martin Rapaport is the chairman of the Rapaport Group and founder of the Rapaport Diamond Report and RapNet, an online diamond trading network. [1] Known for his influential role in the diamond industry, Rapaport has been both a pioneer and a controversial figure, advocating for price transparency, ethical sourcing, and the commoditization of diamonds.