How much does a 2.00 to 2.99ct H SI2 lab grown round diamond cost?

As of September 2026, 2.00 to 2.99ct H SI2 lab grown round diamonds typically cost £1,200 GBP to £20,007 GBP, with a median price of £11,225 GBP. There are currently 92 diamonds matching this specification available across retailers.

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

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

2.00 to 2.99ct H SI2 Lab Grown Round

Quick answer

As of September 2026, there are 92 lab grown round diamonds with H colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £1,200 GBP to £20,007 GBP, with a median of £11,225 GBP. At least 24 retailers stock this exact specification. Half of all listings fall between £705 GBP and £1,654 GBP per carat. The same specification in natural form lists at a median of about £4,867 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. Round lab grown stones in the index: 438 USD per carat, -14.1% 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

£227 GBP

Highest Price

£29,113 GBP

Average Price

£10,893 GBP

Market Intelligence

Retailers Selling

Price Spread

60.0%

Price Range

Price per carat distribution across retailers

$2,138/ct

10th Percentile

$446

Median

$2,138

90th Percentile

$7,756

Score Distribution

92 diamonds scored across 4 quality tiers

Excellent

2 (2.2%)

Very Good

9 (9.8%)

Good

37 (40.2%)

Average

44 (47.8%)

Find Your Diamond

Search 92 H SI2 round diamonds and compare prices.

Search Diamonds

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