How much does a 1.50 to 1.99ct J SI1 natural heart diamond cost?

As of October 2026, 1.50 to 1.99ct J SI1 natural heart diamonds typically cost $3,990 CAD to $13,101 CAD, with a median price of $7,011 CAD. There are currently 128 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 48%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J SI1 Natural Heart

Quick answer

As of October 2026, there are 128 natural heart diamonds with J color and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $3,990 CAD to $13,101 CAD, with a median of $7,011 CAD. At least 53 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 48%. Half of all listings fall between $3,051 CAD and $4,874 CAD per carat. Over the last 30 days the median price moved -1.1% and the number of listings moved +16.8%.

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

128

Lowest Price

$3,048 CAD

Highest Price

$17,350 CAD

Average Price

$7,744 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

41.9%

Price Spread

47.7%

30-Day Price Trend

-1.1%

30-Day Supply Change

+16.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,730/ct

10th Percentile

$1,773

Median

$2,730

90th Percentile

$4,499

Score Distribution

398 diamonds scored across 4 quality tiers

Excellent

55 (13.8%)

Very Good

62 (15.6%)

Good

54 (13.6%)

Average

227 (57.0%)

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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