How much does a 2.00 to 2.99ct J SI2 natural cushion diamond cost?

As of September 2026, 2.00 to 2.99ct J SI2 natural cushion diamonds typically cost £3,500 GBP to £11,014 GBP, with a median price of £5,937 GBP. There are currently 520 diamonds matching this specification available across retailers.

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2.00 to 2.99ct J SI2 Natural Cushion

Quick answer

As of September 2026, there are 520 natural cushion diamonds with J colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £3,500 GBP to £11,014 GBP, with a median of £5,937 GBP. At least 44 retailers stock this exact specification. Half of all listings fall between £2,017 GBP and £3,571 GBP per carat. The same specification in lab grown form lists at a median of about £1,656 GBP 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

520

Lowest Price

£2,020 GBP

Highest Price

£22,057 GBP

Average Price

£6,670 GBP

Market Intelligence

Retailers Selling

Price Spread

58.5%

Price Range

Price per carat distribution across retailers

$3,583/ct

10th Percentile

$2,200

Median

$3,583

90th Percentile

$5,846

Score Distribution

520 diamonds scored across 4 quality tiers

Excellent

59 (11.3%)

Very Good

164 (31.5%)

Good

136 (26.2%)

Average

161 (31.0%)

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Consider Instead

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

Lab-Grown J SI2Same 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