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 €378 EUR to €1,631 EUR, with a median price of €627 EUR. There are currently 30 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 30 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 €378 EUR to €1,631 EUR, with a median of €627 EUR. At least 29 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 €245 EUR and €529 EUR per carat. The same specification in natural form lists at a median of about €7,546 EUR per carat. Over the last 30 days the median price moved -10.4% and the number of listings moved +31.0%.

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

€229 EUR

Highest Price

€3,240 EUR

Average Price

€875 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

34.0%

Price Spread

91.3%

30-Day Price Trend

-10.4%

30-Day Supply Change

+31.0%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$348/ct

10th Percentile

$189

Median

$348

90th Percentile

$904

Score Distribution

79 diamonds scored across 4 quality tiers

Excellent

21 (26.6%)

Very Good

13 (16.5%)

Good

12 (15.2%)

Average

33 (41.8%)

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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