10 years, 25 countries on 5 continents, 11 countries in Europe, and 18 states in the USA 10 years, 25 countries on 5 continents, 11 countries in Europe, and 18 states in the USA



Martin Rapaport is the founder and publisher of the "Rapaport Diamond Report" or more commonly known as the "RAP list". He began his career as a gemstone and rough diamond cutter in Antwerp, Belgium. In 1975 he moved to New York and worked in the diamond trade.

Martin Rapaport

Rapaport is a member of the World Diamond Trade Council and a member of many other diamond trading organizations around the world. Martin Rapaport is one of the proponents and advocates of the Clean Diamond Trade Act "Clean Diamond Trade Act". Along with the certificate "Kimberley Process Certification" is an international certification system in the trade with rough diamonds. The goal is to prevent blood diamonds - Blood Diamonds from entering the commerce of official diamond trading centers. For this same reason, he faced many enemies when he published a list of diamond prices in 1978 and in 1982 he set up RapNet to post prices and news about diamonds online.

Rapaport continues its ambitions and travels the world to publicize groups of politicians, retailers and customers to achieve the goal of helping African miners get fair wages. Martin Rapaport is known for being fair, so it is not possible to bribe him to increase the price of certain diamonds on the price list.

The publishing division is best known for its Rapaport Price List. Founded in 1978, the Rapaport Price List is the industry's primary source for diamond prices and market information. The Rapaport online portal includes Diamonds.net , or RapNet which provides direct access to over a million diamonds from suppliers around the world.


The Rapaport Diamond Report is a weekly online publication that records the current market price of diamonds. The Rapaport price list is a trusted source of information for the diamond trade and is commonly used by dealers to set diamond prices. However, the prices on this list may be significantly higher than the actual transaction price. Rapaport is published online at midnight every Thursday.

The Rapaport Price List does not give an exact transaction price for a diamond but is a starting point for negotiations and the basis for estimating value for a wide range of diamonds of all sizes. and different quality.

The transaction price is the result of negotiations between the seller and the buyer, furthermore it reflects many factors including the physical characteristics of the diamond, terms of sale, customer service and a variety of other factors. another factor.

The transaction price may be significantly higher or lower than the quoted price. Therefore, both buyers and sellers should consult with diamond experts or connoisseurs before deciding to trade diamonds.

So how can the Rapaport Price List be read?

In the price list specified:

  • Weight - Carat: The weight of the diamond ranges from 0.00ct-0.00ct.
  • Color - Color: Shown in levels from high to low: D- F, GH, IJ, KL, MN
  • Purity - Clarity: Expressed in grades from high to low: IF, VVS, VS, SI1, SI2, SI3, I1, I2, I3
  • Date the price list was issued: The top row is highlighted in black

Rapport Price List

Calculation guide:

  • Step 1: Compare the weight of the diamond to be calculated with the weight in the Rapaport table.
  • Step 2: Compare the color of the diamond to be calculated with the color in the table.
  • Step 3: Compare the purity of the diamond to be calculated with the purity in the table.
  • Step 4: Compare the horizontal column (purity) and the vertical column (color grade) to find the price / carat (ct) of the diamond to be calculated (the unit in the price list is $ 100 / carat ( ct).

According to the price list dated 19/08/2016, the way to calculate the price of a diamond is 1.25ct, water G, purity VVS2, the calculation is as follows:

  • The diamond's weight is 1.25 carats which ranges from 1.00 - 1.49ct.
  • Match the color level of the diamond to the G color corresponding to the table.
  • Match the diamond's clarity as VVS1 to the table.
  • Comparing the color and clarity of the diamond, the price is 95.

How to calculate the price of this diamond is: 95 x $100 x 1.25 ct = $11.875

Thus, the value of 1 Diamond 1.25 ct, water G with VVS2 purity is about 11.875 US dollars.

Source: Rapaport

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