How much does a 2.00 to 2.99ct F SI1 lab grown radiant diamond cost?

As of September 2026, 2.00 to 2.99ct F SI1 lab grown radiant diamonds typically cost £367 GBP to £2,166 GBP, with a median price of £907 GBP. There are currently 154 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 radiant diamond?

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2.00 to 2.99ct F SI1 Lab Grown Radiant

Quick answer

As of September 2026, there are 154 lab grown radiant diamonds with F colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £367 GBP to £2,166 GBP, with a median of £907 GBP. At least 25 retailers stock this exact specification. Half of all listings fall between £325 GBP and £1,862 GBP per carat. The same specification in natural form lists at a median of about £7,520 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. Radiant lab grown stones in the index: 473 USD per carat, -12.5% 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

154

Lowest Price

£140 GBP

Highest Price

£22,153 GBP

Average Price

£1,330 GBP

Market Intelligence

Retailers Selling

Price Spread

175.3%

Price Range

Price per carat distribution across retailers

$1,182/ct

10th Percentile

$292

Median

$1,182

90th Percentile

$2,908

Score Distribution

154 diamonds scored across 4 quality tiers

Excellent

27 (17.5%)

Very Good

47 (30.5%)

Good

56 (36.4%)

Average

24 (15.6%)

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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