How much does a 1.00 to 1.49ct H FL natural round diamond cost?

As of September 2026, 1.00 to 1.49ct H FL natural round diamonds typically cost £3,132 GBP to £10,697 GBP, with a median price of £4,010 GBP. There are currently 138 diamonds matching this specification available across retailers.

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1.00 to 1.49ct H FL Natural Round

Quick answer

As of September 2026, there are 138 natural round diamonds with H colour and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £3,132 GBP to £10,697 GBP, with a median of £4,010 GBP. At least 20 retailers stock this exact specification. Half of all listings fall between £3,174 GBP and £4,137 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

138

Lowest Price

£2,777 GBP

Highest Price

£13,756 GBP

Average Price

£5,276 GBP

Market Intelligence

Retailers Selling

Price Spread

26.3%

Price Range

Price per carat distribution across retailers

$4,942/ct

10th Percentile

$3,844

Median

$4,942

90th Percentile

$11,774

Score Distribution

138 diamonds scored across 4 quality tiers

Excellent

7 (5.1%)

Very Good

35 (25.4%)

Good

62 (44.9%)

Average

34 (24.6%)

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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