How much does a 5.00ct+ D IF lab grown round diamond cost?

As of September 2026, 5.00ct+ D IF lab grown round diamonds typically cost £4,474 GBP to £25,420 GBP, with a median price of £11,882 GBP. There are currently 800 diamonds matching this specification available across retailers.

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

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5.00ct+ D IF Lab Grown Round

Quick answer

As of September 2026, there are 800 lab grown round diamonds with D colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £4,474 GBP to £25,420 GBP, with a median of £11,882 GBP. At least 13 retailers stock this exact specification. Half of all listings fall between £5,862 GBP and £11,043 GBP per carat. The same specification in natural form lists at a median of about £36,860 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

800

Lowest Price

£2,827 GBP

Highest Price

£193,606 GBP

Average Price

£13,971 GBP

Market Intelligence

Retailers Selling

Price Spread

77.3%

Price Range

Price per carat distribution across retailers

$8,507/ct

10th Percentile

$6,208

Median

$8,507

90th Percentile

$20,024

Score Distribution

800 diamonds scored across 5 quality tiers

Exceptional

2 (0.3%)

Excellent

296 (37.0%)

Very Good

263 (32.9%)

Good

219 (27.4%)

Average

20 (2.5%)

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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