How much does a 1.00 to 1.49ct F SI2 lab grown heart diamond cost?

As of October 2026, 1.00 to 1.49ct F SI2 lab grown heart diamonds typically cost $1,143 USD to $1,593 USD, with a median price of $1,368 USD. There are currently 1 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI2 heart diamond?

About 67% of these diamonds are available at multiple retailers, with an average price spread of 33%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct F SI2 Lab Grown Heart

Quick answer

As of October 2026, there are 1 lab grown heart diamonds with F color and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,143 USD to $1,593 USD, with a median of $1,368 USD. At least 8 retailers stock this exact specification, and 67% of the stones appear at more than one of them, with an average price spread of 33%. Half of all listings fall between $1,327 USD and $1,841 USD per carat. The same specification in natural form lists at a median of about $2,258 USD per carat. Over the last 30 days the median price moved -0.1% and the number of listings moved +5.0%.

Three of the best scored stones at this specification right now:

1.02ct Heart F SI2, IGI, grade B, from $1,649 USD

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

$1,087 USD

Highest Price

$2,459 USD

Average Price

$1,368 USD

Market Intelligence

Retailers Selling

Cross Retailer %

66.7%

Price Spread

33.0%

30-Day Price Trend

-0.1%

30-Day Supply Change

+5.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,555/ct

10th Percentile

$996

Median

$1,555

90th Percentile

$2,463

Score Distribution

2 diamonds scored across 1 quality tiers

Good

2 (100.0%)

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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