How much does a 3.00 to 4.99ct G VS2 lab grown marquise diamond cost?

As of October 2026, 3.00 to 4.99ct G VS2 lab grown marquise diamonds typically cost £361 GBP to £3,287 GBP, with a median price of £1,355 GBP. There are currently 331 diamonds matching this specification available across retailers.

Where can I find the best price on a G VS2 marquise diamond?

About 39% of these diamonds are available at multiple retailers, with an average price spread of 96%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G VS2 Lab Grown Marquise

Quick answer

As of October 2026, there are 331 lab grown marquise diamonds with G colour and VS2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £361 GBP to £3,287 GBP, with a median of £1,355 GBP. At least 48 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 96%. Half of all listings fall between £222 GBP and £607 GBP per carat. The same specification in natural form lists at a median of about £17,192 GBP per carat. Over the last 30 days the median price moved +27.5% and the number of listings moved +48.2%.

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

331

Lowest Price

£273 GBP

Highest Price

£6,829 GBP

Average Price

£1,700 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

38.7%

Price Spread

96.3%

30-Day Price Trend

+27.5%

30-Day Supply Change

+48.2%

Volatility (30d)

0.13

Price Range

Price per carat distribution across retailers

$533/ct

10th Percentile

$174

Median

$533

90th Percentile

$1,150

Score Distribution

804 diamonds scored across 4 quality tiers

Excellent

170 (21.1%)

Very Good

96 (11.9%)

Good

205 (25.5%)

Average

333 (41.4%)

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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