How much does a 2.00 to 2.99ct D SI1 natural cushion diamond cost?

As of September 2026, 2.00 to 2.99ct D SI1 natural cushion diamonds typically cost €9,665 EUR to €26,152 EUR, with a median price of €16,172 EUR. There are currently 530 diamonds matching this specification available across retailers.

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2.00 to 2.99ct D SI1 Natural Cushion

Quick answer

As of September 2026, there are 530 natural cushion diamonds with D colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run €9,665 EUR to €26,152 EUR, with a median of €16,172 EUR. At least 48 retailers stock this exact specification. Half of all listings fall between €5,753 EUR and €8,782 EUR per carat. The same specification in lab grown form lists at a median of about €309 EUR per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Cushion natural stones in the index: 2,792 USD per carat, +1.1% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

530

Lowest Price

€2,691 EUR

Highest Price

€63,723 EUR

Average Price

€17,244 EUR

Market Intelligence

Retailers Selling

Price Spread

41.7%

Price Range

Price per carat distribution across retailers

$8,412/ct

10th Percentile

$5,432

Median

$8,412

90th Percentile

$11,761

Score Distribution

530 diamonds scored across 4 quality tiers

Excellent

54 (10.2%)

Very Good

136 (25.7%)

Good

178 (33.6%)

Average

162 (30.6%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

D SI2SI2 inclusions are not visible without magnification

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Lab-Grown D SI1Same specifications, lab-grown origin

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Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1