How much does a 1.00 to 1.49ct I VVS1 lab grown radiant diamond cost?

As of October 2026, 1.00 to 1.49ct I VVS1 lab grown radiant diamonds typically cost £184 GBP to £651 GBP, with a median price of £415 GBP. There are currently 3 diamonds matching this specification available across retailers.

Where can I find the best price on a I VVS1 radiant diamond?

About 26% of these diamonds are available at multiple retailers, with an average price spread of 93%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VVS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 3 lab grown radiant diamonds with I colour and VVS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £184 GBP to £651 GBP, with a median of £415 GBP. At least 38 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 93%. Half of all listings fall between £226 GBP and £637 GBP per carat. The same specification in natural form lists at a median of about £2,851 GBP per carat. Over the last 30 days the median price moved 0.0% and the number of listings moved +20.9%.

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

£169 GBP

Highest Price

£1,306 GBP

Average Price

£417 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

26.1%

Price Spread

92.5%

30-Day Price Trend

0.0%

30-Day Supply Change

+20.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$595/ct

10th Percentile

$193

Median

$595

90th Percentile

$1,001

Score Distribution

4 diamonds scored across 3 quality tiers

Excellent

1 (25.0%)

Very Good

2 (50.0%)

Good

1 (25.0%)

Find Your Diamond

Search 3 I VVS1 radiant diamonds and compare prices.

Search Diamonds

Consider Instead

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

I VVS2VVS2 inclusions are not visible without magnification

Save 21%

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