How much does a 1.50 to 1.99ct F I1 natural heart diamond cost?

As of November 2026, 1.50 to 1.99ct F I1 natural heart diamonds typically cost $5,946 SGD to $12,529 SGD, with a median price of $11,149 SGD. There are currently 7 diamonds matching this specification available across retailers.

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

About 6% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct F I1 Natural Heart

Quick answer

As of November 2026, there are 7 natural heart diamonds with F colour and I1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $5,946 SGD to $12,529 SGD, with a median of $11,149 SGD. At least 23 retailers stock this exact specification, and 6% of the stones appear at more than one of them, with an average price spread of 52%. Half of all listings fall between $3,407 SGD and $5,985 SGD per carat. Over the last 30 days the median price moved -2.1% and the number of listings moved +3.3%.

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: November 2026

Available

Lowest Price

$2,980 SGD

Highest Price

$23,969 SGD

Average Price

$10,412 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

6.0%

Price Spread

52.1%

30-Day Price Trend

-2.1%

30-Day Supply Change

+3.3%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$3,868/ct

10th Percentile

$1,970

Median

$3,868

90th Percentile

$5,286

Score Distribution

115 diamonds scored across 4 quality tiers

Excellent

5 (4.3%)

Very Good

4 (3.5%)

Good

6 (5.2%)

Average

100 (87.0%)

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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