How much does a 3.00 to 4.99ct F IF natural cushion diamond cost?

As of September 2026, 3.00 to 4.99ct F IF natural cushion diamonds typically cost £29,552 GBP to £61,718 GBP, with a median price of £37,757 GBP. There are currently 18 diamonds matching this specification available across retailers.

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3.00 to 4.99ct F IF Natural Cushion

Quick answer

As of September 2026, there are 18 natural cushion diamonds with F colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £29,552 GBP to £61,718 GBP, with a median of £37,757 GBP. At least 27 retailers stock this exact specification. Half of all listings fall between £10,320 GBP and £13,487 GBP per carat. The same specification in lab grown form lists at a median of about £943 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

Lowest Price

£25,092 GBP

Highest Price

£73,693 GBP

Average Price

£41,311 GBP

Market Intelligence

Retailers Selling

Price Spread

26.0%

Price Range

Price per carat distribution across retailers

$16,446/ct

10th Percentile

$12,360

Median

$16,446

90th Percentile

$26,726

Score Distribution

18 diamonds scored across 4 quality tiers

Exceptional

1 (5.6%)

Very Good

5 (27.8%)

Good

10 (55.6%)

Average

2 (11.1%)

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Lab-Grown F IFSame specifications, lab-grown origin

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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