How much does a 5.00ct+ D FL natural round diamond cost?

As of September 2026, 5.00ct+ D FL natural round diamonds typically cost £193,023 GBP to £611,985 GBP, with a median price of £279,487 GBP. There are currently 134 diamonds matching this specification available across retailers.

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

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5.00ct+ D FL Natural Round

Quick answer

As of September 2026, there are 134 natural round diamonds with D colour and FL clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £193,023 GBP to £611,985 GBP, with a median of £279,487 GBP. At least 10 retailers stock this exact specification. Half of all listings fall between £64,249 GBP and £88,956 GBP per carat. The same specification in lab grown form lists at a median of about £6,555 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 natural stones in the index: 2,094 USD per carat, -3.8% 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

134

Lowest Price

£57,948 GBP

Highest Price

£1,788,489 GBP

Average Price

£362,380 GBP

Market Intelligence

Retailers Selling

Price Spread

35.6%

Price Range

Price per carat distribution across retailers

$93,653/ct

10th Percentile

$85,497

Median

$93,653

90th Percentile

$153K

Score Distribution

134 diamonds scored across 5 quality tiers

Exceptional

6 (4.5%)

Excellent

34 (25.4%)

Very Good

50 (37.3%)

Good

32 (23.9%)

Average

12 (9.0%)

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