How much does a 1.00 to 1.49ct E FL lab grown marquise diamond cost?

As of September 2026, 1.00 to 1.49ct E FL lab grown marquise diamonds typically cost £254 GBP to £2,575 GBP, with a median price of £643 GBP. There are currently 157 diamonds matching this specification available across retailers.

Where can I find the best price on a E FL marquise diamond?

Compare prices across retailers on Carat Hunter to see all your options.

1.00 to 1.49ct E FL Lab Grown Marquise

Quick answer

As of September 2026, there are 157 lab grown marquise diamonds with E colour and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £254 GBP to £2,575 GBP, with a median of £643 GBP. At least 29 retailers stock this exact specification. Half of all listings fall between £519 GBP and £1,356 GBP per carat. The same specification in natural form lists at a median of about £7,797 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. Marquise lab grown stones in the index: 500 USD per carat, -14.7% 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

157

Lowest Price

£157 GBP

Highest Price

£12,830 GBP

Average Price

£1,222 GBP

Market Intelligence

Retailers Selling

Price Spread

119.0%

Price Range

Price per carat distribution across retailers

$893/ct

10th Percentile

$463

Median

$893

90th Percentile

$2,759

Score Distribution

157 diamonds scored across 4 quality tiers

Excellent

39 (24.8%)

Very Good

38 (24.2%)

Good

23 (14.6%)

Average

57 (36.3%)

Find Your Diamond

Search 157 E FL marquise diamonds and compare prices.

Search Diamonds

Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F FLF colour is visually identical to E to the naked eye

Save 32%

E IFIF inclusions are not visible without magnification

Save 17%

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