How much does a 3.00 to 4.99ct I VVS2 lab grown cushion diamond cost?

As of October 2026, 3.00 to 4.99ct I VVS2 lab grown cushion diamonds typically cost £496 GBP to £3,601 GBP, with a median price of £1,051 GBP. There are currently 52 diamonds matching this specification available across retailers.

Where can I find the best price on a I VVS2 cushion diamond?

About 30% of these diamonds are available at multiple retailers, with an average price spread of 90%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct I VVS2 Lab Grown Cushion

Quick answer

As of October 2026, there are 52 lab grown cushion diamonds with I colour and VVS2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £496 GBP to £3,601 GBP, with a median of £1,051 GBP. At least 42 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 90%. Half of all listings fall between £225 GBP and £618 GBP per carat. The same specification in natural form lists at a median of about £11,352 GBP per carat. Over the last 30 days the median price moved +23.0% and the number of listings moved +1.2%.

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. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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

£401 GBP

Highest Price

£12,507 GBP

Average Price

£1,546 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

29.6%

Price Spread

90.0%

30-Day Price Trend

+23.0%

30-Day Supply Change

+1.2%

Volatility (30d)

0.08

Price Range

Price per carat distribution across retailers

$580/ct

10th Percentile

$237

Median

$580

90th Percentile

$1,221

Score Distribution

95 diamonds scored across 4 quality tiers

Excellent

29 (30.5%)

Very Good

26 (27.4%)

Good

22 (23.2%)

Average

18 (18.9%)

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Consider Instead

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

J VVS2J colour is visually identical to I to the naked eye

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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