How much does a 3.00 to 4.99ct I SI1 lab grown emerald diamond cost?

As of September 2026, 3.00 to 4.99ct I SI1 lab grown emerald diamonds typically cost €1,696 EUR to €6,672 EUR, with a median price of €4,924 EUR. There are currently 76 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct I SI1 Lab Grown Emerald

Quick answer

As of September 2026, there are 76 lab grown emerald diamonds with I colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run €1,696 EUR to €6,672 EUR, with a median of €4,924 EUR. At least 20 retailers stock this exact specification. Half of all listings fall between €314 EUR and €1,541 EUR per carat. The same specification in natural form lists at a median of about €11,278 EUR per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Emerald lab grown stones in the index: 494 USD per carat, -6.7% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

€495 EUR

Highest Price

€7,182 EUR

Average Price

€4,846 EUR

Market Intelligence

Retailers Selling

Price Spread

85.5%

Price Range

Price per carat distribution across retailers

$1,662/ct

10th Percentile

$246

Median

$1,662

90th Percentile

$1,883

Score Distribution

76 diamonds scored across 4 quality tiers

Excellent

2 (2.6%)

Very Good

2 (2.6%)

Good

14 (18.4%)

Average

58 (76.3%)

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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