How much does a 0.20 to 0.49ct I VS1 natural round diamond cost?

As of November 2026, 0.20 to 0.49ct I VS1 natural round diamonds typically cost €238 EUR to €685 EUR, with a median price of €395 EUR. There are currently 10,124 diamonds matching this specification available across retailers.

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

About 43% of these diamonds are available at multiple retailers, with an average price spread of 62%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS1 Natural Round

Quick answer

As of November 2026, there are 10,124 natural round diamonds with I color and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run €238 EUR to €685 EUR, with a median of €395 EUR. At least 37 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 62%. Half of all listings fall between €1,061 EUR and €1,917 EUR per carat. The same specification in lab grown form lists at a median of about €867 EUR per carat. Over the last 30 days the median price moved -7.3% and the number of listings moved +5.5%.

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 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: November 2026

Available

10,124

Lowest Price

€96 EUR

Highest Price

€1,869 EUR

Average Price

€437 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

42.8%

Price Spread

62.2%

30-Day Price Trend

-7.3%

30-Day Supply Change

+5.5%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,538/ct

10th Percentile

$1,000

Median

$1,538

90th Percentile

$2,667

Score Distribution

16.2K diamonds scored across 5 quality tiers

Exceptional

1 (0.0%)

Excellent

6,058 (37.4%)

Very Good

4,276 (26.4%)

Good

3,157 (19.5%)

Average

2,689 (16.6%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

J VS1J colour is visually identical to I to the naked eye

Save 26%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 19%

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