How much does a 1.00 to 1.49ct I VS1 natural princess diamond cost?

As of October 2026, 1.00 to 1.49ct I VS1 natural princess diamonds typically cost $1,648 USD to $4,919 USD, with a median price of $2,747 USD. There are currently 492 diamonds matching this specification available across retailers.

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

About 41% of these diamonds are available at multiple retailers, with an average price spread of 55%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS1 Natural Princess

Quick answer

As of October 2026, there are 492 natural princess diamonds with I color and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,648 USD to $4,919 USD, with a median of $2,747 USD. At least 62 retailers stock this exact specification, and 41% of the stones appear at more than one of them, with an average price spread of 55%. Half of all listings fall between $2,097 USD and $3,515 USD per carat. The same specification in lab grown form lists at a median of about $489 USD per carat. Over the last 30 days the median price moved -1.5% and the number of listings moved +13.4%.

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

492

Lowest Price

$1,242 USD

Highest Price

$11,154 USD

Average Price

$3,103 USD

Market Intelligence

Retailers Selling

Cross Retailer %

40.9%

Price Spread

55.1%

30-Day Price Trend

-1.5%

30-Day Supply Change

+13.4%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,572/ct

10th Percentile

$1,792

Median

$2,572

90th Percentile

$4,629

Score Distribution

1.2K diamonds scored across 5 quality tiers

Exceptional

1 (0.1%)

Excellent

325 (27.7%)

Very Good

300 (25.6%)

Good

168 (14.3%)

Average

379 (32.3%)

Find Your Diamond

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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 25%

I VS2VS2 inclusions are not visible without magnification

Save 6%

Lab-Grown I VS1Same specifications, lab-grown origin

Save 81%

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