How much does a 0.75 to 0.99ct I VS1 lab grown princess diamond cost?

As of October 2026, 0.75 to 0.99ct I VS1 lab grown princess diamonds typically cost €117 EUR to €1,011 EUR, with a median price of €399 EUR. There are currently 9 diamonds matching this specification available across retailers.

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

About 27% of these diamonds are available at multiple retailers, with an average price spread of 109%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct I VS1 Lab Grown Princess

Quick answer

As of October 2026, there are 9 lab grown princess diamonds with I colour and VS1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run €117 EUR to €1,011 EUR, with a median of €399 EUR. At least 36 retailers stock this exact specification, and 27% of the stones appear at more than one of them, with an average price spread of 109%. Half of all listings fall between €268 EUR and €733 EUR per carat. The same specification in natural form lists at a median of about €1,641 EUR per carat. Over the last 30 days the median price moved +4.0% and the number of listings moved +1.8%.

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 lab grown stones in the index: 461 USD per carat, -4.8% 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

Lowest Price

€114 EUR

Highest Price

€2,462 EUR

Average Price

€460 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

27.0%

Price Spread

108.5%

30-Day Price Trend

+4.0%

30-Day Supply Change

+1.8%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$477/ct

10th Percentile

$188

Median

$477

90th Percentile

$1,156

Score Distribution

10 diamonds scored across 4 quality tiers

Excellent

4 (40.0%)

Very Good

1 (10.0%)

Good

4 (40.0%)

Average

1 (10.0%)

Find Your Diamond

Search 9 I VS1 princess diamonds and compare prices.

Search Diamonds

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