How much does a 2.00 to 2.99ct J SI2 natural marquise diamond cost?

As of November 2026, 2.00 to 2.99ct J SI2 natural marquise diamonds typically cost HK$42,368 HKD to HK$196,117 HKD, with a median price of HK$85,911 HKD. There are currently 161 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 54%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J SI2 Natural Marquise

Quick answer

As of November 2026, there are 161 natural marquise diamonds with J colour and SI2 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run HK$42,368 HKD to HK$196,117 HKD, with a median of HK$85,911 HKD. At least 48 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 54%. Half of all listings fall between HK$28,094 HKD and HK$49,483 HKD per carat. Over the last 30 days the median price moved -3.9% and the number of listings moved +30.9%.

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

161

Lowest Price

HK$25,646 HKD

Highest Price

HK$396,699 HKD

Average Price

HK$103,894 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

41.6%

Price Spread

54.0%

30-Day Price Trend

-3.9%

30-Day Supply Change

+30.9%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$5,048/ct

10th Percentile

$2,626

Median

$5,048

90th Percentile

$7,359

Score Distribution

346 diamonds scored across 4 quality tiers

Excellent

44 (12.7%)

Very Good

94 (27.2%)

Good

101 (29.2%)

Average

107 (30.9%)

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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