How much does a 0.75 to 0.99ct H I1 natural heart diamond cost?

As of October 2026, 0.75 to 0.99ct H I1 natural heart diamonds typically cost $1,199 SGD to $2,141 SGD, with a median price of $1,533 SGD. There are currently 7 diamonds matching this specification available across retailers.

Where can I find the best price on a H I1 heart diamond?

About 4% of these diamonds are available at multiple retailers, with an average price spread of 22%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct H I1 Natural Heart

Quick answer

As of October 2026, there are 7 natural heart diamonds with H colour and I1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $1,199 SGD to $2,141 SGD, with a median of $1,533 SGD. At least 16 retailers stock this exact specification, and 4% of the stones appear at more than one of them, with an average price spread of 22%. Half of all listings fall between $1,570 SGD and $1,955 SGD per carat. Over the last 30 days the median price moved -0.8% and the number of listings moved -4.3%.

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

$701 SGD

Highest Price

$3,011 SGD

Average Price

$1,611 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

4.0%

Price Spread

22.4%

30-Day Price Trend

-0.8%

30-Day Supply Change

-4.3%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,344/ct

10th Percentile

$1,120

Median

$1,344

90th Percentile

$1,718

Score Distribution

76 diamonds scored across 3 quality tiers

Excellent

2 (2.6%)

Very Good

2 (2.6%)

Average

72 (94.7%)

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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