How much does a 0.75 to 0.99ct I IF natural heart diamond cost?

As of October 2026, 0.75 to 0.99ct I IF natural heart diamonds typically cost $1,773 NZD to $5,114 NZD, with a median price of $2,635 NZD. There are currently 48 diamonds matching this specification available across retailers.

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

About 37% of these diamonds are available at multiple retailers, with an average price spread of 51%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct I IF Natural Heart

Quick answer

As of October 2026, there are 48 natural heart diamonds with I colour and IF clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $1,773 NZD to $5,114 NZD, with a median of $2,635 NZD. At least 52 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 51%. Half of all listings fall between $2,886 NZD and $4,731 NZD per carat. Over the last 30 days the median price moved -4.2% and the number of listings moved +4.9%.

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

$1,198 NZD

Highest Price

$8,608 NZD

Average Price

$3,127 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

36.8%

Price Spread

51.0%

30-Day Price Trend

-4.2%

30-Day Supply Change

+4.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,029/ct

10th Percentile

$1,379

Median

$2,029

90th Percentile

$3,696

Score Distribution

147 diamonds scored across 5 quality tiers

Exceptional

1 (0.7%)

Excellent

42 (28.6%)

Very Good

27 (18.4%)

Good

42 (28.6%)

Average

35 (23.8%)

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J IFJ colour is visually identical to I to the naked eye

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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