How much does a 3.00 to 4.99ct D IF lab grown round diamond cost?

As of September 2026, 3.00 to 4.99ct D IF lab grown round diamonds typically cost £719 GBP to £11,687 GBP, with a median price of £2,473 GBP. There are currently 6,576 diamonds matching this specification available across retailers.

Where can I find the best price on a D IF round diamond?

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3.00 to 4.99ct D IF Lab Grown Round

Quick answer

As of September 2026, there are 6,576 lab grown round diamonds with D colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £719 GBP to £11,687 GBP, with a median of £2,473 GBP. At least 47 retailers stock this exact specification. Half of all listings fall between £436 GBP and £1,908 GBP per carat. The same specification in natural form lists at a median of about £38,046 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

6,576

Lowest Price

£476 GBP

Highest Price

£176,136 GBP

Average Price

£4,904 GBP

Market Intelligence

Retailers Selling

Price Spread

217.6%

Price Range

Price per carat distribution across retailers

$859/ct

10th Percentile

$409

Median

$859

90th Percentile

$3,434

Score Distribution

6.6K diamonds scored across 5 quality tiers

Exceptional

9 (0.1%)

Excellent

2,767 (42.1%)

Very Good

1,619 (24.6%)

Good

1,262 (19.2%)

Average

919 (14.0%)

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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