How much does a 3.00 to 4.99ct E VS1 lab grown marquise diamond cost?

As of October 2026, 3.00 to 4.99ct E VS1 lab grown marquise diamonds typically cost £448 GBP to £2,935 GBP, with a median price of £801 GBP. There are currently 8,453 diamonds matching this specification available across retailers.

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

About 51% of these diamonds are available at multiple retailers, with an average price spread of 116%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct E VS1 Lab Grown Marquise

Quick answer

As of October 2026, there are 8,453 lab grown marquise diamonds with E colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £448 GBP to £2,935 GBP, with a median of £801 GBP. At least 62 retailers stock this exact specification, and 51% of the stones appear at more than one of them, with an average price spread of 116%. Half of all listings fall between £233 GBP and £667 GBP per carat. The same specification in natural form lists at a median of about £19,001 GBP per carat. Over the last 30 days the median price moved +13.1% and the number of listings moved +74.8%.

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. 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

8,453

Lowest Price

£342 GBP

Highest Price

£8,769 GBP

Average Price

£1,240 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

51.1%

Price Spread

115.9%

30-Day Price Trend

+13.1%

30-Day Supply Change

+74.8%

Volatility (30d)

0.09

Price Range

Price per carat distribution across retailers

$498/ct

10th Percentile

$204

Median

$498

90th Percentile

$1,189

Score Distribution

14.4K diamonds scored across 4 quality tiers

Excellent

6,713 (46.5%)

Very Good

1,940 (13.4%)

Good

2,989 (20.7%)

Average

2,805 (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