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Diamond prices

A diamond's price depends on its category, shape, carat weight, colour and clarity.

Assessing a diamond's price

To estimate a diamond's price accurately, look at its 4Cs (4 criteria).

  • 1

    Colour

    Graded from D (colourless) to Z (lightly tinted): the more colourless a diamond, the rarer and more expensive it is.

  • 2

    Clarity

    Clarity refers to the presence or absence of inclusions in the stone.

  • 3

    Cut

    Cut refers to the quality of the cut (proportions, symmetry, polish), which determines the diamond's brilliance.

  • 4

    Carat weight

    The price rises with the weight and quality of the stone.

Diamond value per carat

The average price of a diamond can range from €1,181 to €2,108 per carat.

Diamonds are weighed in carats. One carat equals 0.20 gram (1/5 of a gram) and is divided into 100 points.

Carat weight is the most objective of the 4Cs. It is measured with scales accurate to a hundredth of a carat: major gemmological laboratories such as GIA, HRD or IGI use highly precise, calibrated digital scales.

  • A diamond's price is always calculated according to its carat weight.
  • Large diamonds are rarer than small ones, so they cost more.
  • A diamond's value increases with its carat weight.

Rapaport price grid: round brilliant diamonds from 0.40 to 0.49 carat

Indicative prices per carat, for information only. Contact us for a personalised quote.

Rapaport price grid: round brilliant diamonds from 0.40 to 0.49 carat
Colour / ClarityIFVVS1VVS2VS1VS2SI1SI2P1P2P3
D€3,764€3,181€2,894€2,646€2,479€2,430€2,121€1,763€1,780€1,630
E€3,244€2,855€2,680€2,529€2,414€2,256€1,932€1,612€1,433€791
F€3,107€2,818€2,659€2,495€2,380€2,232€1,909€1,584€1,110€1,319
G€2,805€2,539€2,472€2,450€2,273€2,137€1,872€1,546€1,083€1,175
H€2,435€2,220€2,192€2,140€2,076€1,980€1,726€1,543€1,089€1,340
I€2,175€2,051€2,009€1,944€1,879€1,761€1,505€1,305€933€1,418
J€1,741€1,678€1,696€1,615€1,656€1,529€1,480€1,174€1,257€1,187
K€1,510€1,487€1,386€1,342€1,339€1,300€1,371€1,082€1,205€1,212
L€1,463€1,351€1,295€1,252€1,215€1,103€1,201€1,137€1,192€815
M€1,321€1,287€1,214€1,178€1,155€1,208€1,071€820€1,139€815

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