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

As of November 2026, 1.50 to 1.99ct E SI2 natural marquise diamonds typically cost €4,764 EUR to €17,587 EUR, with a median price of €8,118 EUR. There are currently 131 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 42%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct E SI2 Natural Marquise

Quick answer

As of November 2026, there are 131 natural marquise diamonds with E color and SI2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run €4,764 EUR to €17,587 EUR, with a median of €8,118 EUR. At least 54 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 42%. Half of all listings fall between €4,681 EUR and €7,144 EUR per carat. The same specification in lab grown form lists at a median of about €261 EUR per carat. Over the last 30 days the median price moved -1.0% and the number of listings moved +13.7%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise natural stones in the index: 2,177 USD per carat, -4.2% 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

131

Lowest Price

€3,557 EUR

Highest Price

€29,170 EUR

Average Price

€9,895 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

35.5%

Price Spread

42.4%

30-Day Price Trend

-1.0%

30-Day Supply Change

+13.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,486/ct

10th Percentile

$4,064

Median

$6,486

90th Percentile

$9,742

Score Distribution

331 diamonds scored across 4 quality tiers

Excellent

84 (25.4%)

Very Good

86 (26.0%)

Good

46 (13.9%)

Average

115 (34.7%)

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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 15%

Lab-Grown E SI2Same specifications, lab-grown origin

Save 96%

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