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

As of October 2026, 1.00 to 1.49ct I VS1 lab grown princess diamonds typically cost $324 NZD to $2,232 NZD, with a median price of $807 NZD. There are currently 15 diamonds matching this specification available across retailers.

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

About 19% of these diamonds are available at multiple retailers, with an average price spread of 64%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS1 Lab Grown Princess

Quick answer

As of October 2026, there are 15 lab grown princess diamonds with I colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $324 NZD to $2,232 NZD, with a median of $807 NZD. At least 40 retailers stock this exact specification, and 19% of the stones appear at more than one of them, with an average price spread of 64%. Half of all listings fall between $556 NZD and $1,100 NZD per carat. The same specification in natural form lists at a median of about $5,539 NZD per carat. Over the last 30 days the median price moved +2.5% and the number of listings moved -1.6%.

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

$245 NZD

Highest Price

$2,945 NZD

Average Price

$1,067 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

19.3%

Price Spread

63.6%

30-Day Price Trend

+2.5%

30-Day Supply Change

-1.6%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$482/ct

10th Percentile

$194

Median

$482

90th Percentile

$926

Score Distribution

23 diamonds scored across 4 quality tiers

Excellent

4 (17.4%)

Very Good

7 (30.4%)

Good

8 (34.8%)

Average

4 (17.4%)

Find Your Diamond

Search 15 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