How much does a 2.00 to 2.99ct E SI1 lab grown heart diamond cost?

As of October 2026, 2.00 to 2.99ct E SI1 lab grown heart diamonds typically cost $537 AUD to $2,650 AUD, with a median price of $1,034 AUD. There are currently 28 diamonds matching this specification available across retailers.

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

About 34% of these diamonds are available at multiple retailers, with an average price spread of 91%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct E SI1 Lab Grown Heart

Quick answer

As of October 2026, there are 28 lab grown heart diamonds with E colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $537 AUD to $2,650 AUD, with a median of $1,034 AUD. At least 28 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between $387 AUD and $842 AUD per carat. The same specification in natural form lists at a median of about $12,475 AUD per carat. Over the last 30 days the median price moved -14.0% and the number of listings moved +26.3%.

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

$364 AUD

Highest Price

$5,153 AUD

Average Price

$1,423 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

33.7%

Price Spread

91.1%

30-Day Price Trend

-14.0%

30-Day Supply Change

+26.3%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$351/ct

10th Percentile

$187

Median

$351

90th Percentile

$940

Score Distribution

76 diamonds scored across 4 quality tiers

Excellent

20 (26.3%)

Very Good

13 (17.1%)

Good

10 (13.2%)

Average

33 (43.4%)

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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