How much does a 5.00ct+ E SI2 lab grown radiant diamond cost?

As of November 2026, 5.00ct+ E SI2 lab grown radiant diamonds typically cost €884 EUR to €1,792 EUR, with a median price of €1,173 EUR. There are currently 3 diamonds matching this specification available across retailers.

Where can I find the best price on a E SI2 radiant diamond?

About 43% of these diamonds are available at multiple retailers, with an average price spread of 129%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ E SI2 Lab Grown Radiant

Quick answer

As of November 2026, there are 3 lab grown radiant diamonds with E color and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €884 EUR to €1,792 EUR, with a median of €1,173 EUR. At least 20 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 129%. Half of all listings fall between €229 EUR and €628 EUR per carat. Over the last 30 days the median price moved -11.3% and the number of listings moved +64.9%.

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. 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: November 2026

Available

Lowest Price

€836 EUR

Highest Price

€6,176 EUR

Average Price

€1,283 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

42.9%

Price Spread

129.2%

30-Day Price Trend

-11.3%

30-Day Supply Change

+64.9%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$345/ct

10th Percentile

$179

Median

$345

90th Percentile

$843

Score Distribution

6 diamonds scored across 4 quality tiers

Excellent

1 (16.7%)

Very Good

2 (33.3%)

Good

1 (16.7%)

Average

2 (33.3%)

Find Your Diamond

Search 3 E SI2 radiant diamonds and compare prices.

Search Diamonds

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