How much does a 3.00 to 4.99ct F SI1 lab grown heart diamond cost?

As of September 2026, 3.00 to 4.99ct F SI1 lab grown heart diamonds typically cost $781 AUD to $2,893 AUD, with a median price of $1,592 AUD. There are currently 59 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 heart diamond?

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct F SI1 Lab Grown Heart

Quick answer

As of September 2026, there are 59 lab grown heart diamonds with F colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $781 AUD to $2,893 AUD, with a median of $1,592 AUD. At least 25 retailers stock this exact specification. Half of all listings fall between $434 AUD and $1,211 AUD per carat. The same specification in natural form lists at a median of about $14,055 AUD per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Heart lab grown stones in the index: 440 USD per carat, -9.4% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$400 AUD

Highest Price

$11,014 AUD

Average Price

$1,854 AUD

Market Intelligence

Retailers Selling

Price Spread

119.4%

Price Range

Price per carat distribution across retailers

$467/ct

10th Percentile

$223

Median

$467

90th Percentile

$1,313

Score Distribution

59 diamonds scored across 4 quality tiers

Excellent

14 (23.7%)

Very Good

12 (20.3%)

Good

6 (10.2%)

Average

27 (45.8%)

Find Your Diamond

Search 59 F SI1 heart diamonds and compare prices.

Search Diamonds

Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F SI2SI2 inclusions are not visible without magnification

Save 36%

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