How much does a 5.00ct+ I SI2 lab grown emerald diamond cost?

As of October 2026, 5.00ct+ I SI2 lab grown emerald diamonds typically cost €759 EUR to €2,325 EUR, with a median price of €1,367 EUR. There are currently 1 diamonds matching this specification available across retailers.

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

About 29% of these diamonds are available at multiple retailers, with an average price spread of 98%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ I SI2 Lab Grown Emerald

Quick answer

As of October 2026, there are 1 lab grown emerald diamonds with I colour and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run €759 EUR to €2,325 EUR, with a median of €1,367 EUR. At least 13 retailers stock this exact specification, and 29% of the stones appear at more than one of them, with an average price spread of 98%. Half of all listings fall between €149 EUR and €363 EUR per carat. The same specification in natural form lists at a median of about €14,657 EUR per carat. Over the last 30 days the median price moved -8.6% and the number of listings moved +21.2%.

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

7.01ct Emerald I SI2, IGI, grade A, from €607 EUR

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. Emerald lab grown stones in the index: 451 USD per carat, -8.3% 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

€607 EUR

Highest Price

€3,181 EUR

Average Price

€1,513 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

28.6%

Price Spread

98.2%

30-Day Price Trend

-8.6%

30-Day Supply Change

+21.2%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$243/ct

10th Percentile

$112

Median

$243

90th Percentile

$473

Score Distribution

3 diamonds scored across 3 quality tiers

Excellent

1 (33.3%)

Good

1 (33.3%)

Average

1 (33.3%)

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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