How much does a 5.00ct+ I VS2 natural marquise diamond cost?

As of September 2026, 5.00ct+ I VS2 natural marquise diamonds typically cost $122,210 NZD to $398,745 NZD, with a median price of $267,689 NZD. There are currently 16 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS2 marquise diamond?

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5.00ct+ I VS2 Natural Marquise

Quick answer

As of September 2026, there are 16 natural marquise diamonds with I colour and VS2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $122,210 NZD to $398,745 NZD, with a median of $267,689 NZD. At least 9 retailers stock this exact specification. Half of all listings fall between $26,796 NZD and $34,809 NZD per carat. The same specification in lab grown form lists at a median of about $1,321 NZD per carat.

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

$110,583 NZD

Highest Price

$603,250 NZD

Average Price

$257,467 NZD

Market Intelligence

Retailers Selling

Price Spread

26.3%

Price Range

Price per carat distribution across retailers

$18,304/ct

10th Percentile

$15,749

Median

$18,304

90th Percentile

$21,949

Score Distribution

16 diamonds scored across 4 quality tiers

Excellent

3 (18.8%)

Very Good

5 (31.3%)

Good

3 (18.8%)

Average

5 (31.3%)

Find Your Diamond

Search 16 I VS2 marquise diamonds and compare prices.

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Consider Instead

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

J VS2J colour is visually identical to I to the naked eye

Save 49%

Lab-Grown I VS2Same specifications, lab-grown origin

Save 96%

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