How much does a 5.00ct+ E IF lab grown marquise diamond cost?

As of September 2026, 5.00ct+ E IF lab grown marquise diamonds typically cost $12,677 NZD to $63,639 NZD, with a median price of $33,036 NZD. There are currently 19 diamonds matching this specification available across retailers.

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

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5.00ct+ E IF Lab Grown Marquise

Quick answer

As of September 2026, there are 19 lab grown marquise diamonds with E colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $12,677 NZD to $63,639 NZD, with a median of $33,036 NZD. At least 24 retailers stock this exact specification. Half of all listings fall between $5,866 NZD and $13,268 NZD per carat. The same specification in natural form lists at a median of about $83,271 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

Lowest Price

$9,140 NZD

Highest Price

$180,551 NZD

Average Price

$37,062 NZD

Market Intelligence

Retailers Selling

Price Spread

71.1%

Price Range

Price per carat distribution across retailers

$5,995/ct

10th Percentile

$1,867

Median

$5,995

90th Percentile

$11,004

Score Distribution

19 diamonds scored across 3 quality tiers

Excellent

5 (26.3%)

Very Good

12 (63.2%)

Good

2 (10.5%)

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Consider Instead

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

F IFF colour is visually identical to E to the naked eye

Save 58%

E VVS1VVS1 inclusions are not visible without magnification

Save 70%

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