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

As of September 2026, 2.00 to 2.99ct J I1 natural marquise diamonds typically cost $10,250 SGD to $39,750 SGD, with a median price of $21,524 SGD. There are currently 28 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 44%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J I1 Natural Marquise

Quick answer

As of September 2026, there are 28 natural marquise diamonds with J colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $10,250 SGD to $39,750 SGD, with a median of $21,524 SGD. At least 16 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 44%. Half of all listings fall between $4,263 SGD and $6,606 SGD per carat. The same specification in lab grown form lists at a median of about $6,880 SGD per carat. Over the last 30 days the median price moved -53.0% and the number of listings moved -54.5%.

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

$4,345 SGD

Highest Price

$151,379 SGD

Average Price

$24,444 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

31.4%

Price Spread

44.3%

30-Day Price Trend

-53.0%

30-Day Supply Change

-54.5%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$3,968/ct

10th Percentile

$1,808

Median

$3,968

90th Percentile

$6,355

Score Distribution

28 diamonds scored across 4 quality tiers

Excellent

2 (7.1%)

Very Good

4 (14.3%)

Good

6 (21.4%)

Average

16 (57.1%)

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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