How much does a 1.00 to 1.49ct I VS2 lab grown round diamond cost?

As of October 2026, 1.00 to 1.49ct I VS2 lab grown round diamonds typically cost £328 GBP to £1,222 GBP, with a median price of £788 GBP. There are currently 87 diamonds matching this specification available across retailers.

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

About 27% of these diamonds are available at multiple retailers, with an average price spread of 105%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS2 Lab Grown Round

Quick answer

As of October 2026, there are 87 lab grown round diamonds with I colour and VS2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £328 GBP to £1,222 GBP, with a median of £788 GBP. At least 34 retailers stock this exact specification, and 27% of the stones appear at more than one of them, with an average price spread of 105%. Half of all listings fall between £239 GBP and £617 GBP per carat. The same specification in natural form lists at a median of about £2,873 GBP per carat. Over the last 30 days the median price moved -7.7% and the number of listings moved -1.4%.

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. Round lab grown stones in the index: 414 USD per carat, -5.0% 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

£116 GBP

Highest Price

£3,433 GBP

Average Price

£832 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

27.1%

Price Spread

105.0%

30-Day Price Trend

-7.7%

30-Day Supply Change

-1.4%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$479/ct

10th Percentile

$188

Median

$479

90th Percentile

$1,344

Score Distribution

176 diamonds scored across 4 quality tiers

Excellent

26 (14.8%)

Very Good

31 (17.6%)

Good

49 (27.8%)

Average

70 (39.8%)

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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