How much does a 2.00 to 2.99ct I I1 natural marquise diamond cost?

As of September 2026, 2.00 to 2.99ct I I1 natural marquise diamonds typically cost $7,289 USD to $40,296 USD, with a median price of $13,541 USD. There are currently 52 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 61%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct I I1 Natural Marquise

Quick answer

As of September 2026, there are 52 natural marquise diamonds with I color and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $7,289 USD to $40,296 USD, with a median of $13,541 USD. At least 22 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 61%. Half of all listings fall between $4,633 USD and $8,588 USD per carat. The same specification in lab grown form lists at a median of about $1,812 USD per carat. Over the last 30 days the median price moved -23.7% and the number of listings moved -14.4%.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Marquise natural stones in the index: 2,114 USD per carat, -8.8% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$3,262 USD

Highest Price

$61,532 USD

Average Price

$17,521 USD

Market Intelligence

Retailers Selling

Cross Retailer %

38.3%

Price Spread

61.5%

30-Day Price Trend

-23.7%

30-Day Supply Change

-14.4%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$6,437/ct

10th Percentile

$2,554

Median

$6,437

90th Percentile

$13,407

Score Distribution

52 diamonds scored across 4 quality tiers

Excellent

1 (1.9%)

Very Good

20 (38.5%)

Good

8 (15.4%)

Average

23 (44.2%)

Find Your Diamond

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Consider Instead

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

J I1J colour is visually identical to I to the naked eye

Save 41%

Lab-Grown I I1Same specifications, lab-grown origin

Save 72%

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