How much does a 1.00 to 1.49ct D IF natural cushion diamond cost?

As of September 2026, 1.00 to 1.49ct D IF natural cushion diamonds typically cost £3,461 GBP to £10,975 GBP, with a median price of £5,887 GBP. There are currently 116 diamonds matching this specification available across retailers.

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1.00 to 1.49ct D IF Natural Cushion

Quick answer

As of September 2026, there are 116 natural cushion diamonds with D colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £3,461 GBP to £10,975 GBP, with a median of £5,887 GBP. At least 47 retailers stock this exact specification. Half of all listings fall between £3,223 GBP and £6,050 GBP per carat. The same specification in lab grown form lists at a median of about £639 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

116

Lowest Price

£1,836 GBP

Highest Price

£19,833 GBP

Average Price

£6,701 GBP

Market Intelligence

Retailers Selling

Price Spread

63.0%

Price Range

Price per carat distribution across retailers

$6,060/ct

10th Percentile

$3,487

Median

$6,060

90th Percentile

$9,979

Score Distribution

116 diamonds scored across 5 quality tiers

Exceptional

1 (0.9%)

Excellent

9 (7.8%)

Very Good

30 (25.9%)

Good

37 (31.9%)

Average

39 (33.6%)

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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