How much does a 0.75 to 0.99ct E SI2 natural marquise diamond cost?

As of November 2026, 0.75 to 0.99ct E SI2 natural marquise diamonds typically cost €1,377 EUR to €3,466 EUR, with a median price of €2,219 EUR. There are currently 97 diamonds matching this specification available across retailers.

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

About 29% of these diamonds are available at multiple retailers, with an average price spread of 49%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct E SI2 Natural Marquise

Quick answer

As of November 2026, there are 97 natural marquise diamonds with E color and SI2 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run €1,377 EUR to €3,466 EUR, with a median of €2,219 EUR. At least 53 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 49%. Half of all listings fall between €1,953 EUR and €3,153 EUR per carat. The same specification in lab grown form lists at a median of about €418 EUR per carat. Over the last 30 days the median price moved -0.2% and the number of listings moved +2.2%.

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. Marquise natural stones in the index: 2,268 USD per carat, +10.8% 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

€858 EUR

Highest Price

€6,155 EUR

Average Price

€2,325 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

28.8%

Price Spread

49.3%

30-Day Price Trend

-0.2%

30-Day Supply Change

+2.2%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,716/ct

10th Percentile

$1,868

Median

$2,716

90th Percentile

$4,735

Score Distribution

258 diamonds scored across 4 quality tiers

Excellent

30 (11.6%)

Very Good

61 (23.6%)

Good

47 (18.2%)

Average

120 (46.5%)

Find Your Diamond

Search 97 E SI2 marquise diamonds and compare prices.

Search Diamonds

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 83%

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