How much does a 5.00ct+ F SI2 lab grown heart diamond cost?

As of October 2026, 5.00ct+ F SI2 lab grown heart diamonds typically cost $849 AUD to $22,045 AUD, with a median price of $3,159 AUD. There are currently 3 diamonds matching this specification available across retailers.

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

About 100% of these diamonds are available at multiple retailers, with an average price spread of 80%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ F SI2 Lab Grown Heart

Quick answer

As of October 2026, there are 3 lab grown heart diamonds with F colour and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $849 AUD to $22,045 AUD, with a median of $3,159 AUD. At least 10 retailers stock this exact specification, and 100% of the stones appear at more than one of them, with an average price spread of 80%. Half of all listings fall between $196 AUD and $393 AUD per carat. Over the last 30 days the median price moved -17.2% and the number of listings moved +42.4%.

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

$848 AUD

Highest Price

$32,434 AUD

Average Price

$8,599 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

100.0%

Price Spread

80.4%

30-Day Price Trend

-17.2%

30-Day Supply Change

+42.4%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$172/ct

10th Percentile

$126

Median

$172

90th Percentile

$412

Score Distribution

7 diamonds scored across 4 quality tiers

Excellent

2 (28.6%)

Very Good

3 (42.9%)

Good

1 (14.3%)

Average

1 (14.3%)

Find Your Diamond

Search 3 F SI2 heart 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