How much does a 5.00ct+ G SI2 natural heart diamond cost?

As of September 2026, 5.00ct+ G SI2 natural heart diamonds typically cost $37,665 USD to $146,733 USD, with a median price of $55,608 USD. There are currently 26 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

5.00ct+ G SI2 Natural Heart

Quick answer

As of September 2026, there are 26 natural heart diamonds with G color and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $37,665 USD to $146,733 USD, with a median of $55,608 USD. At least 23 retailers stock this exact specification. Half of all listings fall between $9,550 USD and $19,724 USD per carat. The same specification in lab grown form lists at a median of about $378 USD 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

$25,309 USD

Highest Price

$250,973 USD

Average Price

$77,478 USD

Market Intelligence

Retailers Selling

Price Spread

75.1%

Price Range

Price per carat distribution across retailers

$13,550/ct

10th Percentile

$6,279

Median

$13,550

90th Percentile

$32,840

Score Distribution

26 diamonds scored across 4 quality tiers

Excellent

7 (26.9%)

Very Good

9 (34.6%)

Good

7 (26.9%)

Average

3 (11.5%)

Find Your Diamond

Search 26 G 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.

H SI2H colour is visually identical to G to the naked eye

Save 4%

Lab-Grown G SI2Same specifications, lab-grown origin

Save 97%

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