How much does a 0.20 to 0.49ct M VVS2 lab grown round diamond cost?

As of November 6, 2026, 0.20 to 0.49ct M VVS2 lab grown round diamonds typically cost £80 GBP to £397 GBP, with a median price of £159 GBP. There are currently 32 diamonds matching this specification available across retailers.

Where can I find the best price on a M VVS2 round diamond?

About 31% of these diamonds are available at multiple retailers, with an average price spread of 147%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct M VVS2 Lab Grown Round

Quick answer

As of November 6, 2026, there are 32 lab grown round diamonds with M colour and VVS2 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £80 GBP to £397 GBP, with a median of £159 GBP. Half of all listings fall between £235 GBP and £811 GBP per carat. The same specification in natural form lists at a median of about £620 GBP per carat. Over the last 30 days the median price moved -14.6% and the number of listings moved +1.7%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Round lab grown stones in the index: 425 USD per carat, +1.7% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

Lowest Price

£77 GBP

Highest Price

£493 GBP

Average Price

£197 GBP

Market Intelligence

Cross Retailer %

31.3%

Price Spread

146.6%

30-Day Price Trend

-14.6%

30-Day Supply Change

+1.7%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$529/ct

10th Percentile

$303

Median

$529

90th Percentile

$1,312

Score Distribution

32 diamonds scored across 4 quality tiers

Excellent

8 (25.0%)

Very Good

2 (6.3%)

Good

9 (28.1%)

Average

13 (40.6%)

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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