How much does a 2.00 to 2.99ct H SI1 natural marquise diamond cost?

As of November 2026, 2.00 to 2.99ct H SI1 natural marquise diamonds typically cost €12,075 EUR to €33,972 EUR, with a median price of €17,420 EUR. There are currently 66 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI1 marquise diamond?

About 29% of these diamonds are available at multiple retailers, with an average price spread of 26%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct H SI1 Natural Marquise

Quick answer

As of November 2026, there are 66 natural marquise diamonds with H color and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run €12,075 EUR to €33,972 EUR, with a median of €17,420 EUR. At least 58 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 26%. Half of all listings fall between €7,460 EUR and €9,659 EUR per carat. The same specification in lab grown form lists at a median of about €586 EUR per carat. Over the last 30 days the median price moved -3.9% and the number of listings moved +27.3%.

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

€7,611 EUR

Highest Price

€57,010 EUR

Average Price

€20,704 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

29.1%

Price Spread

26.0%

30-Day Price Trend

-3.9%

30-Day Supply Change

+27.3%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$9,454/ct

10th Percentile

$6,855

Median

$9,454

90th Percentile

$13,096

Score Distribution

168 diamonds scored across 4 quality tiers

Excellent

7 (4.2%)

Very Good

45 (26.8%)

Good

47 (28.0%)

Average

69 (41.1%)

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Consider Instead

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

H SI2SI2 inclusions are not visible without magnification

Save 25%

Lab-Grown H SI1Same specifications, lab-grown origin

Save 93%

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