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

As of October 2026, 0.20 to 0.49ct I VS1 natural princess diamonds typically cost £232 GBP to £544 GBP, with a median price of £353 GBP. There are currently 209 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 53%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS1 Natural Princess

Quick answer

As of October 2026, there are 209 natural princess diamonds with I colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £232 GBP to £544 GBP, with a median of £353 GBP. At least 17 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 53%. Half of all listings fall between £856 GBP and £1,403 GBP per carat. Over the last 30 days the median price moved -5.7% and the number of listings moved +16.3%.

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. Princess natural stones in the index: 2,158 USD per carat, +5.7% 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

209

Lowest Price

£127 GBP

Highest Price

£1,219 GBP

Average Price

£381 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

47.4%

Price Spread

53.0%

30-Day Price Trend

-5.7%

30-Day Supply Change

+16.3%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$1,376/ct

10th Percentile

$877

Median

$1,376

90th Percentile

$3,753

Score Distribution

417 diamonds scored across 4 quality tiers

Excellent

65 (15.6%)

Very Good

133 (31.9%)

Good

54 (12.9%)

Average

165 (39.6%)

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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