How much does a 3.00 to 4.99ct J VS2 lab grown radiant diamond cost?

As of October 2026, 3.00 to 4.99ct J VS2 lab grown radiant diamonds typically cost £507 GBP to £2,688 GBP, with a median price of £1,996 GBP. There are currently 7 diamonds matching this specification available across retailers.

Where can I find the best price on a J VS2 radiant diamond?

About 43% of these diamonds are available at multiple retailers, with an average price spread of 99%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J VS2 Lab Grown Radiant

Quick answer

As of October 2026, there are 7 lab grown radiant diamonds with J colour and VS2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £507 GBP to £2,688 GBP, with a median of £1,996 GBP. At least 26 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 99%. Half of all listings fall between £222 GBP and £684 GBP per carat. The same specification in natural form lists at a median of about £6,138 GBP per carat. Over the last 30 days the median price moved -11.9% and the number of listings moved -3.1%.

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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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

£285 GBP

Highest Price

£6,061 GBP

Average Price

£1,674 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

43.3%

Price Spread

99.1%

30-Day Price Trend

-11.9%

30-Day Supply Change

-3.1%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$621/ct

10th Percentile

$156

Median

$621

90th Percentile

$1,126

Score Distribution

18 diamonds scored across 4 quality tiers

Excellent

1 (5.6%)

Very Good

4 (22.2%)

Good

8 (44.4%)

Average

5 (27.8%)

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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