How much does a 1.00 to 1.49ct D SI2 natural heart diamond cost?

As of October 2026, 1.00 to 1.49ct D SI2 natural heart diamonds typically cost $1,649 USD to $5,800 USD, with a median price of $2,463 USD. There are currently 176 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 63%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct D SI2 Natural Heart

Quick answer

As of October 2026, there are 176 natural heart diamonds with D color and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,649 USD to $5,800 USD, with a median of $2,463 USD. At least 55 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 63%. Half of all listings fall between $1,782 USD and $3,158 USD per carat. The same specification in lab grown form lists at a median of about $341 USD per carat. Over the last 30 days the median price moved -3.2% and the number of listings moved +11.0%.

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 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

176

Lowest Price

$1,110 USD

Highest Price

$12,402 USD

Average Price

$3,242 USD

Market Intelligence

Retailers Selling

Cross Retailer %

41.8%

Price Spread

62.9%

30-Day Price Trend

-3.2%

30-Day Supply Change

+11.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,188/ct

10th Percentile

$1,518

Median

$2,188

90th Percentile

$4,369

Score Distribution

469 diamonds scored across 4 quality tiers

Excellent

116 (24.7%)

Very Good

71 (15.1%)

Good

98 (20.9%)

Average

184 (39.2%)

Find Your Diamond

Search 176 D SI2 heart diamonds and compare prices.

Search Diamonds

Consider Instead

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

Lab-Grown D SI2Same specifications, lab-grown origin

Save 84%

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