How much does a 3.00 to 4.99ct H VS1 lab grown princess diamond cost?

As of October 2026, 3.00 to 4.99ct H VS1 lab grown princess diamonds typically cost £429 GBP to £3,692 GBP, with a median price of £1,197 GBP. There are currently 349 diamonds matching this specification available across retailers.

Where can I find the best price on a H VS1 princess diamond?

About 26% of these diamonds are available at multiple retailers, with an average price spread of 177%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct H VS1 Lab Grown Princess

Quick answer

As of October 2026, there are 349 lab grown princess diamonds with H colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £429 GBP to £3,692 GBP, with a median of £1,197 GBP. At least 44 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 177%. Half of all listings fall between £232 GBP and £985 GBP per carat. The same specification in natural form lists at a median of about £8,396 GBP per carat. Over the last 30 days the median price moved +3.5% and the number of listings moved +5.3%.

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. Princess lab grown stones in the index: 461 USD per carat, -4.8% 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

349

Lowest Price

£275 GBP

Highest Price

£15,047 GBP

Average Price

£1,966 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

25.9%

Price Spread

177.4%

30-Day Price Trend

+3.5%

30-Day Supply Change

+5.3%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$565/ct

10th Percentile

$187

Median

$565

90th Percentile

$3,289

Score Distribution

1.1K diamonds scored across 4 quality tiers

Excellent

204 (19.3%)

Very Good

158 (14.9%)

Good

305 (28.8%)

Average

392 (37.0%)

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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