How much does a 2.00 to 2.99ct J I1 natural cushion diamond cost?

As of September 2026, 2.00 to 2.99ct J I1 natural cushion diamonds typically cost £3,973 GBP to £11,758 GBP, with a median price of £6,784 GBP. There are currently 67 diamonds matching this specification available across retailers.

Where can I find the best price on a J I1 cushion diamond?

About 15% of these diamonds are available at multiple retailers, with an average price spread of 54%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J I1 Natural Cushion

Quick answer

As of September 2026, there are 67 natural cushion diamonds with J colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £3,973 GBP to £11,758 GBP, with a median of £6,784 GBP. At least 18 retailers stock this exact specification, and 15% of the stones appear at more than one of them, with an average price spread of 54%. Half of all listings fall between £2,498 GBP and £4,488 GBP per carat. The same specification in lab grown form lists at a median of about £3,136 GBP per carat. Over the last 30 days the median price moved -5.1% and the number of listings moved +11.4%.

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

Lowest Price

£2,565 GBP

Highest Price

£22,246 GBP

Average Price

£7,681 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

15.1%

Price Spread

54.0%

30-Day Price Trend

-5.1%

30-Day Supply Change

+11.4%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$4,685/ct

10th Percentile

$2,532

Median

$4,685

90th Percentile

$6,385

Score Distribution

67 diamonds scored across 4 quality tiers

Excellent

4 (6.0%)

Very Good

13 (19.4%)

Good

9 (13.4%)

Average

41 (61.2%)

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Consider Instead

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

Lab-Grown J I1Same specifications, lab-grown origin

Save 14%

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