How much does a 2.00 to 2.99ct I SI2 natural heart diamond cost?

As of October 2026, 2.00 to 2.99ct I SI2 natural heart diamonds typically cost $5,738 USD to $22,473 USD, with a median price of $10,427 USD. There are currently 187 diamonds matching this specification available across retailers.

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

About 43% of these diamonds are available at multiple retailers, with an average price spread of 43%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct I SI2 Natural Heart

Quick answer

As of October 2026, there are 187 natural heart diamonds with I color and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $5,738 USD to $22,473 USD, with a median of $10,427 USD. At least 51 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 43%. Half of all listings fall between $3,410 USD and $5,239 USD per carat. The same specification in lab grown form lists at a median of about $1,328 USD per carat. Over the last 30 days the median price moved -1.6% and the number of listings moved +17.1%.

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 natural stones in the index: 2,374 USD per carat, +9.8% 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

187

Lowest Price

$2,590 USD

Highest Price

$47,160 USD

Average Price

$12,489 USD

Market Intelligence

Retailers Selling

Cross Retailer %

43.2%

Price Spread

43.2%

30-Day Price Trend

-1.6%

30-Day Supply Change

+17.1%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$4,234/ct

10th Percentile

$2,757

Median

$4,234

90th Percentile

$6,709

Score Distribution

548 diamonds scored across 4 quality tiers

Excellent

135 (24.6%)

Very Good

88 (16.1%)

Good

65 (11.9%)

Average

260 (47.4%)

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Consider Instead

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

J SI2J colour is visually identical to I to the naked eye

Save 18%

Lab-Grown I SI2Same specifications, lab-grown origin

Save 69%

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