How much does a 2.00 to 2.99ct F SI2 natural round diamond cost?

As of October 2026, 2.00 to 2.99ct F SI2 natural round diamonds typically cost £5,998 GBP to £22,390 GBP, with a median price of £11,582 GBP. There are currently 780 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI2 round diamond?

About 39% of these diamonds are available at multiple retailers, with an average price spread of 49%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct F SI2 Natural Round

Quick answer

As of October 2026, there are 780 natural round diamonds with F colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,998 GBP to £22,390 GBP, with a median of £11,582 GBP. At least 58 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 49%. Half of all listings fall between £3,626 GBP and £6,001 GBP per carat. The same specification in lab grown form lists at a median of about £272 GBP per carat. Over the last 30 days the median price moved -1.9% and the number of listings moved +12.6%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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

780

Lowest Price

£3,334 GBP

Highest Price

£40,968 GBP

Average Price

£13,111 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

39.0%

Price Spread

48.9%

30-Day Price Trend

-1.9%

30-Day Supply Change

+12.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,451/ct

10th Percentile

$3,884

Median

$6,451

90th Percentile

$9,642

Score Distribution

1.9K diamonds scored across 4 quality tiers

Excellent

496 (25.4%)

Very Good

475 (24.4%)

Good

437 (22.4%)

Average

542 (27.8%)

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Consider Instead

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

F I1I1 inclusions are not visible without magnification

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Lab-Grown F SI2Same specifications, lab-grown origin

Save 94%

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