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

As of October 2026, 3.00 to 4.99ct E IF lab grown marquise diamonds typically cost $3,457 NZD to $18,559 NZD, with a median price of $7,464 NZD. There are currently 91 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 83%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct E IF Lab Grown Marquise

Quick answer

As of October 2026, there are 91 lab grown marquise diamonds with E colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $3,457 NZD to $18,559 NZD, with a median of $7,464 NZD. At least 49 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 83%. Half of all listings fall between $2,252 NZD and $4,980 NZD per carat. The same specification in natural form lists at a median of about $49,594 NZD per carat. Over the last 30 days the median price moved -14.2% and the number of listings moved +14.9%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Marquise lab grown stones in the index: 485 USD per carat, -3.2% 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: October 2026

Available

Lowest Price

$2,544 NZD

Highest Price

$66,879 NZD

Average Price

$10,156 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

39.9%

Price Spread

82.9%

30-Day Price Trend

-14.2%

30-Day Supply Change

+14.9%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$1,854/ct

10th Percentile

$961

Median

$1,854

90th Percentile

$4,043

Score Distribution

213 diamonds scored across 5 quality tiers

Exceptional

3 (1.4%)

Excellent

94 (44.1%)

Very Good

73 (34.3%)

Good

28 (13.1%)

Average

15 (7.0%)

Find Your Diamond

Search 91 E IF marquise diamonds and compare prices.

Search Diamonds

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 46%

E VVS1VVS1 inclusions are not visible without magnification

Save 61%

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