How much does a 5.00ct+ D FL lab grown oval diamond cost?

As of September 2026, 5.00ct+ D FL lab grown oval diamonds typically cost £7,580 GBP to £38,090 GBP, with a median price of £21,959 GBP. There are currently 578 diamonds matching this specification available across retailers.

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

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

5.00ct+ D FL Lab Grown Oval

Quick answer

As of September 2026, there are 578 lab grown oval diamonds with D colour and FL clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £7,580 GBP to £38,090 GBP, with a median of £21,959 GBP. At least 27 retailers stock this exact specification. Half of all listings fall between £2,171 GBP and £5,564 GBP per carat. The same specification in natural form lists at a median of about £46,309 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

578

Lowest Price

£5,531 GBP

Highest Price

£424,118 GBP

Average Price

£23,860 GBP

Market Intelligence

Retailers Selling

Price Spread

92.9%

Price Range

Price per carat distribution across retailers

$4,936/ct

10th Percentile

$2,239

Median

$4,936

90th Percentile

$9,760

Score Distribution

578 diamonds scored across 5 quality tiers

Exceptional

1 (0.2%)

Excellent

144 (24.9%)

Very Good

161 (27.9%)

Good

227 (39.3%)

Average

45 (7.8%)

Find Your Diamond

Search 578 D FL oval diamonds and compare prices.

Search Diamonds

Consider Instead

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

D IFIF inclusions are not visible without magnification

Save 22%

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