How much does a 5.00ct+ E FL lab grown radiant diamond cost?

As of October 2026, 5.00ct+ E FL lab grown radiant diamonds typically cost $16,398 NZD to $76,423 NZD, with a median price of $50,337 NZD. There are currently 26 diamonds matching this specification available across retailers.

Where can I find the best price on a E FL radiant diamond?

About 46% of these diamonds are available at multiple retailers, with an average price spread of 92%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ E FL Lab Grown Radiant

Quick answer

As of October 2026, there are 26 lab grown radiant diamonds with E colour and FL clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $16,398 NZD to $76,423 NZD, with a median of $50,337 NZD. At least 32 retailers stock this exact specification, and 46% of the stones appear at more than one of them, with an average price spread of 92%. Half of all listings fall between $4,002 NZD and $9,903 NZD per carat. Over the last 30 days the median price moved -11.8% and the number of listings moved +18.4%.

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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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

$14,461 NZD

Highest Price

$137,709 NZD

Average Price

$50,640 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

45.8%

Price Spread

92.0%

30-Day Price Trend

-11.8%

30-Day Supply Change

+18.4%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$3,605/ct

10th Percentile

$1,889

Median

$3,605

90th Percentile

$7,255

Score Distribution

64 diamonds scored across 4 quality tiers

Excellent

11 (17.2%)

Very Good

15 (23.4%)

Good

34 (53.1%)

Average

4 (6.3%)

Find Your Diamond

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Consider Instead

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

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

Save 36%

E IFIF inclusions are not visible without magnification

Save 25%

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