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

As of November 2026, 1.50 to 1.99ct E I1 natural heart diamonds typically cost $5,890 SGD to $18,720 SGD, with a median price of $12,558 SGD. There are currently 10 diamonds matching this specification available across retailers.

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

About 5% 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 I1 Natural Heart

Quick answer

As of November 2026, there are 10 natural heart diamonds with E colour and I1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $5,890 SGD to $18,720 SGD, with a median of $12,558 SGD. At least 21 retailers stock this exact specification, and 5% of the stones appear at more than one of them, with an average price spread of 58%. Half of all listings fall between $2,760 SGD and $4,953 SGD per carat. Over the last 30 days the median price moved -1.5% and the number of listings moved +6.7%.

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

$2,324 SGD

Highest Price

$23,433 SGD

Average Price

$12,490 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

5.3%

Price Spread

57.6%

30-Day Price Trend

-1.5%

30-Day Supply Change

+6.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,981/ct

10th Percentile

$1,615

Median

$2,981

90th Percentile

$4,781

Score Distribution

105 diamonds scored across 4 quality tiers

Excellent

6 (5.7%)

Very Good

4 (3.8%)

Good

8 (7.6%)

Average

87 (82.9%)

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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