How much does a 2.00 to 2.99ct I SI2 lab grown oval diamond cost?

As of September 2026, 2.00 to 2.99ct I SI2 lab grown oval diamonds typically cost £844 GBP to £3,085 GBP, with a median price of £1,537 GBP. There are currently 345 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

2.00 to 2.99ct I SI2 Lab Grown Oval

Quick answer

As of September 2026, there are 345 lab grown oval diamonds with I colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £844 GBP to £3,085 GBP, with a median of £1,537 GBP. At least 17 retailers stock this exact specification. Half of all listings fall between £678 GBP and £1,527 GBP per carat. The same specification in natural form lists at a median of about £4,703 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. Oval lab grown stones in the index: 487 USD per carat, -11.2% 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

345

Lowest Price

£229 GBP

Highest Price

£26,921 GBP

Average Price

£2,186 GBP

Market Intelligence

Retailers Selling

Price Spread

61.0%

Price Range

Price per carat distribution across retailers

$1,880/ct

10th Percentile

$570

Median

$1,880

90th Percentile

$2,084

Score Distribution

345 diamonds scored across 4 quality tiers

Excellent

83 (24.1%)

Very Good

113 (32.8%)

Good

110 (31.9%)

Average

39 (11.3%)

Find Your Diamond

Search 345 I SI2 oval diamonds and compare prices.

Search Diamonds

Consider Instead

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

J SI2J colour is visually identical to I to the naked eye

Save 7%

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