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

As of October 2026, 2.00 to 2.99ct H SI2 natural cushion diamonds typically cost £4,545 GBP to £15,957 GBP, with a median price of £9,016 GBP. There are currently 257 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI2 cushion diamond?

About 32% 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 H SI2 Natural Cushion

Quick answer

As of October 2026, there are 257 natural cushion diamonds with H colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £4,545 GBP to £15,957 GBP, with a median of £9,016 GBP. At least 52 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 54%. Half of all listings fall between £2,720 GBP and £4,653 GBP per carat. The same specification in lab grown form lists at a median of about £1,433 GBP per carat. Over the last 30 days the median price moved -1.5% and the number of listings moved +4.8%.

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

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Cushion natural stones in the index: 2,948 USD per carat, +1.7% month on month. See the full index release

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

Last updated: October 2026

Available

257

Lowest Price

£2,262 GBP

Highest Price

£35,864 GBP

Average Price

£9,979 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

32.5%

Price Spread

54.1%

30-Day Price Trend

-1.5%

30-Day Supply Change

+4.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$4,760/ct

10th Percentile

$2,913

Median

$4,760

90th Percentile

$7,357

Score Distribution

771 diamonds scored across 4 quality tiers

Excellent

116 (15.0%)

Very Good

161 (20.9%)

Good

192 (24.9%)

Average

302 (39.2%)

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Consider Instead

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

Lab-Grown H 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