How much does a 3.00 to 4.99ct J SI1 natural heart diamond cost?

As of October 2026, 3.00 to 4.99ct J SI1 natural heart diamonds typically cost $28,499 SGD to $115,514 SGD, with a median price of $54,638 SGD. There are currently 15 diamonds matching this specification available across retailers.

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

About 24% of these diamonds are available at multiple retailers, with an average price spread of 35%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct J SI1 Natural Heart

Quick answer

As of October 2026, there are 15 natural heart diamonds with J colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $28,499 SGD to $115,514 SGD, with a median of $54,638 SGD. At least 33 retailers stock this exact specification, and 24% of the stones appear at more than one of them, with an average price spread of 35%. Half of all listings fall between $8,068 SGD and $11,167 SGD per carat. Over the last 30 days the median price moved -2.5% 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

Lowest Price

$18,026 SGD

Highest Price

$133,204 SGD

Average Price

$61,680 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

23.5%

Price Spread

34.9%

30-Day Price Trend

-2.5%

30-Day Supply Change

+11.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,952/ct

10th Percentile

$5,682

Median

$6,952

90th Percentile

$10,457

Score Distribution

74 diamonds scored across 4 quality tiers

Excellent

1 (1.4%)

Very Good

9 (12.2%)

Good

7 (9.5%)

Average

57 (77.0%)

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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