How much does a 1.00 to 1.49ct F FL lab grown cushion diamond cost?

As of October 2026, 1.00 to 1.49ct F FL lab grown cushion diamonds typically cost £372 GBP to £971 GBP, with a median price of £681 GBP. There are currently 5 diamonds matching this specification available across retailers.

Where can I find the best price on a F FL cushion diamond?

About 64% of these diamonds are available at multiple retailers, with an average price spread of 80%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct F FL Lab Grown Cushion

Quick answer

As of October 2026, there are 5 lab grown cushion diamonds with F colour and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £372 GBP to £971 GBP, with a median of £681 GBP. At least 22 retailers stock this exact specification, and 64% of the stones appear at more than one of them, with an average price spread of 80%. Half of all listings fall between £771 GBP and £1,541 GBP per carat. The same specification in natural form lists at a median of about £2,784 GBP per carat. Over the last 30 days the median price moved -5.7% and the number of listings moved +24.8%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Cushion lab grown stones in the index: 516 USD per carat, +6.9% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

Lowest Price

£372 GBP

Highest Price

£2,829 GBP

Average Price

£680 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

63.6%

Price Spread

79.8%

30-Day Price Trend

-5.7%

30-Day Supply Change

+24.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,284/ct

10th Percentile

$787

Median

$1,284

90th Percentile

$3,075

Score Distribution

10 diamonds scored across 3 quality tiers

Excellent

4 (40.0%)

Very Good

3 (30.0%)

Good

3 (30.0%)

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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