How much does a 1.00 to 1.49ct H SI1 natural heart diamond cost?

As of October 2026, 1.00 to 1.49ct H SI1 natural heart diamonds typically cost $1,474 USD to $4,835 USD, with a median price of $2,372 USD. There are currently 416 diamonds matching this specification available across retailers.

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

About 45% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct H SI1 Natural Heart

Quick answer

As of October 2026, there are 416 natural heart diamonds with H color and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,474 USD to $4,835 USD, with a median of $2,372 USD. At least 65 retailers stock this exact specification, and 45% of the stones appear at more than one of them, with an average price spread of 57%. Half of all listings fall between $1,657 USD and $2,852 USD per carat. The same specification in lab grown form lists at a median of about $805 USD per carat. Over the last 30 days the median price moved -2.5% and the number of listings moved +18.2%.

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

416

Lowest Price

$976 USD

Highest Price

$8,827 USD

Average Price

$2,806 USD

Market Intelligence

Retailers Selling

Cross Retailer %

45.1%

Price Spread

57.0%

30-Day Price Trend

-2.5%

30-Day Supply Change

+18.2%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,097/ct

10th Percentile

$1,419

Median

$2,097

90th Percentile

$3,956

Score Distribution

969 diamonds scored across 4 quality tiers

Excellent

165 (17.0%)

Very Good

180 (18.6%)

Good

193 (19.9%)

Average

431 (44.5%)

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Consider Instead

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

H SI2SI2 inclusions are not visible without magnification

Save 10%

Lab-Grown H SI1Same specifications, lab-grown origin

Save 45%

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