How much does a 0.20 to 0.49ct E VS1 lab grown round diamond cost?

As of October 2026, 0.20 to 0.49ct E VS1 lab grown round diamonds typically cost £55 GBP to £294 GBP, with a median price of £127 GBP. There are currently 2,797 diamonds matching this specification available across retailers.

Where can I find the best price on a E VS1 round diamond?

About 58% of these diamonds are available at multiple retailers, with an average price spread of 143%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct E VS1 Lab Grown Round

Quick answer

As of October 2026, there are 2,797 lab grown round diamonds with E colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £55 GBP to £294 GBP, with a median of £127 GBP. At least 22 retailers stock this exact specification, and 58% of the stones appear at more than one of them, with an average price spread of 143%. Half of all listings fall between £209 GBP and £664 GBP per carat. The same specification in natural form lists at a median of about £1,513 GBP per carat. Over the last 30 days the median price moved -4.5% and the number of listings moved +0.5%.

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

2,797

Lowest Price

£35 GBP

Highest Price

£705 GBP

Average Price

£156 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

58.3%

Price Spread

143.3%

30-Day Price Trend

-4.5%

30-Day Supply Change

+0.5%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$421/ct

10th Percentile

$232

Median

$421

90th Percentile

$1,146

Score Distribution

5.2K diamonds scored across 4 quality tiers

Excellent

1,461 (28.0%)

Very Good

1,409 (27.0%)

Good

1,445 (27.7%)

Average

898 (17.2%)

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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