How much does a 0.20 to 0.49ct E SI1 lab grown emerald diamond cost?

As of November 2026, 0.20 to 0.49ct E SI1 lab grown emerald diamonds typically cost €92 EUR to €328 EUR, with a median price of €178 EUR. There are currently 23 diamonds matching this specification available across retailers.

Where can I find the best price on a E SI1 emerald diamond?

About 60% of these diamonds are available at multiple retailers, with an average price spread of 75%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct E SI1 Lab Grown Emerald

Quick answer

As of November 2026, there are 23 lab grown emerald diamonds with E color and SI1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run €92 EUR to €328 EUR, with a median of €178 EUR. At least 6 retailers stock this exact specification, and 60% of the stones appear at more than one of them, with an average price spread of 75%. Half of all listings fall between €583 EUR and €1,232 EUR per carat. The same specification in natural form lists at a median of about €1,106 EUR per carat.

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: November 2026

Available

Lowest Price

€64 EUR

Highest Price

€732 EUR

Average Price

€202 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

60.0%

Price Spread

74.6%

Price Range

Price per carat distribution across retailers

$972/ct

10th Percentile

$515

Median

$972

90th Percentile

$1,705

Score Distribution

38 diamonds scored across 4 quality tiers

Excellent

7 (18.4%)

Very Good

8 (21.1%)

Good

15 (39.5%)

Average

8 (21.1%)

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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