How much does a 1.50 to 1.99ct J SI2 natural heart diamond cost?

As of October 2026, 1.50 to 1.99ct J SI2 natural heart diamonds typically cost $2,616 USD to $7,054 USD, with a median price of $4,079 USD. There are currently 188 diamonds matching this specification available across retailers.

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

About 43% of these diamonds are available at multiple retailers, with an average price spread of 47%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J SI2 Natural Heart

Quick answer

As of October 2026, there are 188 natural heart diamonds with J color and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $2,616 USD to $7,054 USD, with a median of $4,079 USD. At least 46 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 47%. Half of all listings fall between $2,035 USD and $3,263 USD per carat. Over the last 30 days the median price moved -0.8% and the number of listings moved +17.9%.

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

188

Lowest Price

$1,516 USD

Highest Price

$13,060 USD

Average Price

$4,481 USD

Market Intelligence

Retailers Selling

Cross Retailer %

42.6%

Price Spread

46.9%

30-Day Price Trend

-0.8%

30-Day Supply Change

+17.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,617/ct

10th Percentile

$1,719

Median

$2,617

90th Percentile

$4,350

Score Distribution

509 diamonds scored across 4 quality tiers

Excellent

99 (19.4%)

Very Good

84 (16.5%)

Good

99 (19.4%)

Average

227 (44.6%)

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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