How much does a 0.20 to 0.49ct I VVS1 natural round diamond cost?

As of October 2026, 0.20 to 0.49ct I VVS1 natural round diamonds typically cost £192 GBP to £600 GBP, with a median price of £327 GBP. There are currently 11,215 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VVS1 Natural Round

Quick answer

As of October 2026, there are 11,215 natural round diamonds with I colour and VVS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £192 GBP to £600 GBP, with a median of £327 GBP. At least 38 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 57%. Half of all listings fall between £930 GBP and £1,624 GBP per carat. The same specification in lab grown form lists at a median of about £845 GBP per carat. Over the last 30 days the median price moved -11.2% and the number of listings moved +12.0%.

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 natural stones in the index: 2,248 USD per carat, +7.6% 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

11,215

Lowest Price

£86 GBP

Highest Price

£1,556 GBP

Average Price

£363 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

39.6%

Price Spread

56.9%

30-Day Price Trend

-11.2%

30-Day Supply Change

+12.0%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$1,625/ct

10th Percentile

$1,029

Median

$1,625

90th Percentile

$2,581

Score Distribution

18.3K diamonds scored across 5 quality tiers

Exceptional

38 (0.2%)

Excellent

8,342 (45.5%)

Very Good

4,581 (25.0%)

Good

3,126 (17.0%)

Average

2,254 (12.3%)

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J VVS1J colour is visually identical to I to the naked eye

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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