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

As of November 2026, 3.00 to 4.99ct E IF lab grown cushion diamonds typically cost $2,839 NZD to $19,378 NZD, with a median price of $6,457 NZD. There are currently 114 diamonds matching this specification available across retailers.

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

About 31% 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 Cushion

Quick answer

As of November 2026, there are 114 lab grown cushion diamonds with E colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $2,839 NZD to $19,378 NZD, with a median of $6,457 NZD. At least 52 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 83%. Half of all listings fall between $1,392 NZD and $3,279 NZD per carat. The same specification in natural form lists at a median of about $48,799 NZD per carat. Over the last 30 days the median price moved -13.8% and the number of listings moved +7.5%.

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. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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: November 2026

Available

114

Lowest Price

$1,955 NZD

Highest Price

$77,218 NZD

Average Price

$10,072 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

30.8%

Price Spread

83.0%

30-Day Price Trend

-13.8%

30-Day Supply Change

+7.5%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$1,282/ct

10th Percentile

$585

Median

$1,282

90th Percentile

$2,990

Score Distribution

349 diamonds scored across 5 quality tiers

Exceptional

1 (0.3%)

Excellent

120 (34.4%)

Very Good

144 (41.3%)

Good

44 (12.6%)

Average

40 (11.5%)

Find Your Diamond

Search 114 E IF cushion 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 19%

E VVS1VVS1 inclusions are not visible without magnification

Save 32%

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