How much does a 0.20 to 0.49ct G VS1 lab grown radiant diamond cost?

As of October 2026, 0.20 to 0.49ct G VS1 lab grown radiant diamonds typically cost £66 GBP to £306 GBP, with a median price of £132 GBP. There are currently 14 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 81%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct G VS1 Lab Grown Radiant

Quick answer

As of October 2026, there are 14 lab grown radiant diamonds with G colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £66 GBP to £306 GBP, with a median of £132 GBP. At least 32 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 81%. Half of all listings fall between £275 GBP and £663 GBP per carat. The same specification in natural form lists at a median of about £1,480 GBP per carat. Over the last 30 days the median price moved +1.5% and the number of listings moved +3.7%.

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

£64 GBP

Highest Price

£823 GBP

Average Price

£156 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

39.8%

Price Spread

81.5%

30-Day Price Trend

+1.5%

30-Day Supply Change

+3.7%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$633/ct

10th Percentile

$271

Median

$633

90th Percentile

$1,319

Score Distribution

22 diamonds scored across 4 quality tiers

Excellent

9 (40.9%)

Very Good

2 (9.1%)

Good

5 (22.7%)

Average

6 (27.3%)

Find Your Diamond

Search 14 G VS1 radiant diamonds and compare prices.

Search Diamonds

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