How much does a 3.00 to 4.99ct E SI2 lab grown emerald diamond cost?

As of October 2026, 3.00 to 4.99ct E SI2 lab grown emerald diamonds typically cost $398 USD to $2,178 USD, with a median price of $786 USD. There are currently 9 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 120%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct E SI2 Lab Grown Emerald

Quick answer

As of October 2026, there are 9 lab grown emerald diamonds with E color and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $398 USD to $2,178 USD, with a median of $786 USD. At least 21 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 120%. Half of all listings fall between $215 USD and $543 USD per carat. The same specification in natural form lists at a median of about $11,860 USD per carat. Over the last 30 days the median price moved +12.3% and the number of listings moved +5.3%.

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. 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

$372 USD

Highest Price

$4,031 USD

Average Price

$1,147 USD

Market Intelligence

Retailers Selling

Cross Retailer %

39.1%

Price Spread

119.9%

30-Day Price Trend

+12.3%

30-Day Supply Change

+5.3%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$274/ct

10th Percentile

$142

Median

$274

90th Percentile

$726

Score Distribution

24 diamonds scored across 4 quality tiers

Excellent

6 (25.0%)

Very Good

4 (16.7%)

Good

6 (25.0%)

Average

8 (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