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

As of September 2026, 3.00 to 4.99ct D SI1 natural heart diamonds typically cost $38,291 SGD to $94,001 SGD, with a median price of $50,440 SGD. There are currently 95 diamonds matching this specification available across retailers.

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3.00 to 4.99ct D SI1 Natural Heart

Quick answer

As of September 2026, there are 95 natural heart diamonds with D colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $38,291 SGD to $94,001 SGD, with a median of $50,440 SGD. At least 14 retailers stock this exact specification. Half of all listings fall between $11,267 SGD and $16,210 SGD per carat. The same specification in lab grown form lists at a median of about $456 SGD per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Heart natural stones in the index: 2,261 USD per carat, +1.7% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$33,487 SGD

Highest Price

$184,804 SGD

Average Price

$56,834 SGD

Market Intelligence

Retailers Selling

Price Spread

38.1%

Price Range

Price per carat distribution across retailers

$10,219/ct

10th Percentile

$8,035

Median

$10,219

90th Percentile

$15,281

Score Distribution

95 diamonds scored across 4 quality tiers

Excellent

8 (8.4%)

Very Good

24 (25.3%)

Good

40 (42.1%)

Average

23 (24.2%)

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Lab-Grown D SI1Same specifications, lab-grown origin

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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