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

As of October 2026, 1.00 to 1.49ct I VS1 lab grown heart diamonds typically cost $517 NZD to $3,539 NZD, with a median price of $1,377 NZD. There are currently 4 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 112%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I VS1 Lab Grown Heart

Quick answer

As of October 2026, there are 4 lab grown heart diamonds with I colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $517 NZD to $3,539 NZD, with a median of $1,377 NZD. At least 34 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 112%. Half of all listings fall between $562 NZD and $1,474 NZD per carat. The same specification in natural form lists at a median of about $5,740 NZD per carat. Over the last 30 days the median price moved -11.1% and the number of listings moved +20.4%.

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. Heart lab grown stones in the index: 421 USD per carat, -1.8% 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

$389 NZD

Highest Price

$5,543 NZD

Average Price

$1,872 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

31.4%

Price Spread

111.9%

30-Day Price Trend

-11.1%

30-Day Supply Change

+20.4%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$460/ct

10th Percentile

$199

Median

$460

90th Percentile

$1,602

Score Distribution

7 diamonds scored across 3 quality tiers

Excellent

2 (28.6%)

Good

2 (28.6%)

Average

3 (42.9%)

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

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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