How much does a 5.00ct+ F VS1 lab grown marquise diamond cost?

As of October 2026, 5.00ct+ F VS1 lab grown marquise diamonds typically cost £663 GBP to £5,482 GBP, with a median price of £1,342 GBP. There are currently 1,458 diamonds matching this specification available across retailers.

Where can I find the best price on a F VS1 marquise diamond?

About 48% of these diamonds are available at multiple retailers, with an average price spread of 98%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ F VS1 Lab Grown Marquise

Quick answer

As of October 2026, there are 1,458 lab grown marquise diamonds with F colour and VS1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £663 GBP to £5,482 GBP, with a median of £1,342 GBP. At least 44 retailers stock this exact specification, and 48% of the stones appear at more than one of them, with an average price spread of 98%. Half of all listings fall between £194 GBP and £460 GBP per carat. The same specification in natural form lists at a median of about £29,701 GBP per carat. Over the last 30 days the median price moved -14.6% and the number of listings moved +36.3%.

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. Marquise lab grown stones in the index: 485 USD per carat, -3.2% 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

1,458

Lowest Price

£187 GBP

Highest Price

£40,905 GBP

Average Price

£2,376 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

48.3%

Price Spread

98.2%

30-Day Price Trend

-14.6%

30-Day Supply Change

+36.3%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$361/ct

10th Percentile

$184

Median

$361

90th Percentile

$969

Score Distribution

2.6K diamonds scored across 4 quality tiers

Excellent

1,144 (43.2%)

Very Good

493 (18.6%)

Good

499 (18.8%)

Average

514 (19.4%)

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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