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

As of October 2026, 1.50 to 1.99ct E SI2 natural heart diamonds typically cost HK$25,422 HKD to HK$102,678 HKD, with a median price of HK$51,178 HKD. There are currently 104 diamonds matching this specification available across retailers.

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

About 35% 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 E SI2 Natural Heart

Quick answer

As of October 2026, there are 104 natural heart diamonds with E colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run HK$25,422 HKD to HK$102,678 HKD, with a median of HK$51,178 HKD. At least 50 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 58%. Half of all listings fall between HK$23,734 HKD and HK$41,155 HKD per carat. The same specification in lab grown form lists at a median of about HK$3,703 HKD per carat. Over the last 30 days the median price moved -0.1% and the number of listings moved +10.0%.

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

104

Lowest Price

HK$13,170 HKD

Highest Price

HK$164,785 HKD

Average Price

HK$59,936 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

35.4%

Price Spread

58.1%

30-Day Price Trend

-0.1%

30-Day Supply Change

+10.0%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$3,818/ct

10th Percentile

$2,489

Median

$3,818

90th Percentile

$6,647

Score Distribution

318 diamonds scored across 4 quality tiers

Excellent

66 (20.8%)

Very Good

51 (16.0%)

Good

53 (16.7%)

Average

148 (46.5%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F SI2F colour is visually identical to E to the naked eye

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Lab-Grown E SI2Same specifications, lab-grown origin

Save 88%

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