How much does a 3.00 to 4.99ct D IF lab grown marquise diamond cost?

As of September 2026, 3.00 to 4.99ct D IF lab grown marquise diamonds typically cost $6,054 NZD to $26,996 NZD, with a median price of $15,100 NZD. There are currently 685 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct D IF Lab Grown Marquise

Quick answer

As of September 2026, there are 685 lab grown marquise diamonds with D colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $6,054 NZD to $26,996 NZD, with a median of $15,100 NZD. At least 40 retailers stock this exact specification. Half of all listings fall between $2,595 NZD and $6,447 NZD per carat. The same specification in natural form lists at a median of about $48,153 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 lab grown stones in the index: 500 USD per carat, -14.7% 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

685

Lowest Price

$3,598 NZD

Highest Price

$116,270 NZD

Average Price

$15,899 NZD

Market Intelligence

Retailers Selling

Price Spread

96.1%

Price Range

Price per carat distribution across retailers

$2,405/ct

10th Percentile

$1,147

Median

$2,405

90th Percentile

$5,829

Score Distribution

685 diamonds scored across 4 quality tiers

Excellent

173 (25.3%)

Very Good

197 (28.8%)

Good

241 (35.2%)

Average

74 (10.8%)

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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