How much does a 5.00ct+ J IF natural cushion diamond cost?

As of September 2026, 5.00ct+ J IF natural cushion diamonds typically cost £56,312 GBP to £194,454 GBP, with a median price of £109,372 GBP. There are currently 12 diamonds matching this specification available across retailers.

Where can I find the best price on a J IF cushion diamond?

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5.00ct+ J IF Natural Cushion

Quick answer

As of September 2026, there are 12 natural cushion diamonds with J colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £56,312 GBP to £194,454 GBP, with a median of £109,372 GBP. At least 7 retailers stock this exact specification. Half of all listings fall between £14,226 GBP and £16,784 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

£47,212 GBP

Highest Price

£203,804 GBP

Average Price

£116,037 GBP

Market Intelligence

Retailers Selling

Price Spread

15.5%

Price Range

Price per carat distribution across retailers

$22,314/ct

10th Percentile

$15,633

Median

$22,314

90th Percentile

$22,826

Score Distribution

12 diamonds scored across 3 quality tiers

Excellent

3 (25.0%)

Very Good

5 (41.7%)

Average

4 (33.3%)

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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