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

As of September 2026, 2.00 to 2.99ct H I1 natural marquise diamonds typically cost $8,533 AUD to $51,624 AUD, with a median price of $17,725 AUD. There are currently 47 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 65%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct H I1 Natural Marquise

Quick answer

As of September 2026, there are 47 natural marquise diamonds with H colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $8,533 AUD to $51,624 AUD, with a median of $17,725 AUD. At least 22 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 65%. Half of all listings fall between $6,292 AUD and $11,962 AUD per carat. The same specification in lab grown form lists at a median of about $2,545 AUD per carat. Over the last 30 days the median price moved -26.7% and the number of listings moved -8.8%.

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

$5,045 AUD

Highest Price

$81,891 AUD

Average Price

$24,769 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

35.5%

Price Spread

65.3%

30-Day Price Trend

-26.7%

30-Day Supply Change

-8.8%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$6,186/ct

10th Percentile

$2,432

Median

$6,186

90th Percentile

$12,393

Score Distribution

47 diamonds scored across 4 quality tiers

Excellent

3 (6.4%)

Very Good

20 (42.6%)

Good

4 (8.5%)

Average

20 (42.6%)

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Consider Instead

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

Lab-Grown H I1Same specifications, lab-grown origin

Save 71%

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