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

As of October 2026, 5.00ct+ E IF lab grown radiant diamonds typically cost £4,963 GBP to £21,962 GBP, with a median price of £9,310 GBP. There are currently 18 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 93%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ E IF Lab Grown Radiant

Quick answer

As of October 2026, there are 18 lab grown radiant diamonds with E colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £4,963 GBP to £21,962 GBP, with a median of £9,310 GBP. At least 41 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 93%. Half of all listings fall between £1,492 GBP and £3,379 GBP 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

£2,383 GBP

Highest Price

£39,897 GBP

Average Price

£11,906 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

35.9%

Price Spread

93.0%

30-Day Price Trend

-11.8%

30-Day Supply Change

+18.4%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$2,703/ct

10th Percentile

$1,611

Median

$2,703

90th Percentile

$6,160

Score Distribution

51 diamonds scored across 5 quality tiers

Exceptional

2 (3.9%)

Excellent

22 (43.1%)

Very Good

13 (25.5%)

Good

10 (19.6%)

Average

4 (7.8%)

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 IFF colour is visually identical to E to the naked eye

Save 35%

E VVS1VVS1 inclusions are not visible without magnification

Save 64%

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