How much does a 0.75 to 0.99ct G SI2 natural heart diamond cost?

As of November 2026, 0.75 to 0.99ct G SI2 natural heart diamonds typically cost $1,478 NZD to $4,776 NZD, with a median price of $2,260 NZD. There are currently 125 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 74%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct G SI2 Natural Heart

Quick answer

As of November 2026, there are 125 natural heart diamonds with G colour and SI2 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $1,478 NZD to $4,776 NZD, with a median of $2,260 NZD. At least 52 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 74%. Half of all listings fall between $2,110 NZD and $4,135 NZD per carat. Over the last 30 days the median price moved -0.4% and the number of listings moved +3.7%.

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: November 2026

Available

125

Lowest Price

$1,013 NZD

Highest Price

$10,653 NZD

Average Price

$2,795 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

33.5%

Price Spread

74.0%

30-Day Price Trend

-0.4%

30-Day Supply Change

+3.7%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,542/ct

10th Percentile

$1,010

Median

$1,542

90th Percentile

$3,271

Score Distribution

353 diamonds scored across 4 quality tiers

Excellent

62 (17.6%)

Very Good

53 (15.0%)

Good

82 (23.2%)

Average

156 (44.2%)

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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