How much does a 1.50 to 1.99ct F SI2 natural heart diamond cost?

As of October 2026, 1.50 to 1.99ct F SI2 natural heart diamonds typically cost HK$25,228 HKD to HK$79,936 HKD, with a median price of HK$48,648 HKD. There are currently 146 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 58%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct F SI2 Natural Heart

Quick answer

As of October 2026, there are 146 natural heart diamonds with F colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run HK$25,228 HKD to HK$79,936 HKD, with a median of HK$48,648 HKD. At least 54 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 58%. Half of all listings fall between HK$19,981 HKD and HK$34,968 HKD per carat. Over the last 30 days the median price moved -2.8% and the number of listings moved +16.2%.

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

146

Lowest Price

HK$14,327 HKD

Highest Price

HK$139,983 HKD

Average Price

HK$51,905 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

41.8%

Price Spread

57.9%

30-Day Price Trend

-2.8%

30-Day Supply Change

+16.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$3,299/ct

10th Percentile

$2,081

Median

$3,299

90th Percentile

$5,584

Score Distribution

414 diamonds scored across 4 quality tiers

Excellent

93 (22.5%)

Very Good

80 (19.3%)

Good

50 (12.1%)

Average

191 (46.1%)

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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