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 $4,157 SGD to $16,763 SGD, with a median price of $8,292 SGD. There are currently 108 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 56%. 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 108 natural heart diamonds with E colour and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $4,157 SGD to $16,763 SGD, with a median of $8,292 SGD. At least 49 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 56%. Half of all listings fall between $3,802 SGD and $6,514 SGD per carat. The same specification in lab grown form lists at a median of about $605 SGD per carat. Over the last 30 days the median price moved +0.1% and the number of listings moved +10.2%.

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

108

Lowest Price

$2,151 SGD

Highest Price

$26,917 SGD

Average Price

$9,731 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

35.1%

Price Spread

56.3%

30-Day Price Trend

+0.1%

30-Day Supply Change

+10.2%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$3,757/ct

10th Percentile

$2,455

Median

$3,757

90th Percentile

$6,478

Score Distribution

330 diamonds scored across 4 quality tiers

Excellent

70 (21.2%)

Very Good

55 (16.7%)

Good

56 (17.0%)

Average

149 (45.2%)

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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

Save 13%

Lab-Grown E SI2Same specifications, lab-grown origin

Save 87%

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