How much does a 1.50 to 1.99ct D VS1 lab grown radiant diamond cost?

As of October 2026, 1.50 to 1.99ct D VS1 lab grown radiant diamonds typically cost £179 GBP to £903 GBP, with a median price of £551 GBP. There are currently 4,880 diamonds matching this specification available across retailers.

Where can I find the best price on a D VS1 radiant diamond?

About 39% 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.

1.50 to 1.99ct D VS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 4,880 lab grown radiant diamonds with D colour and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £179 GBP to £903 GBP, with a median of £551 GBP. At least 59 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 93%. Half of all listings fall between £206 GBP and £521 GBP per carat. The same specification in natural form lists at a median of about £5,952 GBP per carat. Over the last 30 days the median price moved +18.4% and the number of listings moved +18.8%.

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

4,880

Lowest Price

£137 GBP

Highest Price

£2,773 GBP

Average Price

£536 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

38.6%

Price Spread

93.4%

30-Day Price Trend

+18.4%

30-Day Supply Change

+18.8%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$450/ct

10th Percentile

$171

Median

$450

90th Percentile

$953

Score Distribution

6.6K diamonds scored across 5 quality tiers

Exceptional

10 (0.2%)

Excellent

2,275 (34.4%)

Very Good

1,149 (17.4%)

Good

2,585 (39.1%)

Average

593 (9.0%)

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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