How much does a 1.50 to 1.99ct I SI1 lab grown emerald diamond cost?

As of November 2026, 1.50 to 1.99ct I SI1 lab grown emerald diamonds typically cost €321 EUR to €1,273 EUR, with a median price of €761 EUR. There are currently 16 diamonds matching this specification available across retailers.

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

About 20% of these diamonds are available at multiple retailers, with an average price spread of 114%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I SI1 Lab Grown Emerald

Quick answer

As of November 2026, there are 16 lab grown emerald diamonds with I color and SI1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run €321 EUR to €1,273 EUR, with a median of €761 EUR. At least 27 retailers stock this exact specification, and 20% of the stones appear at more than one of them, with an average price spread of 114%. Half of all listings fall between €322 EUR and €988 EUR per carat. The same specification in natural form lists at a median of about €3,815 EUR per carat. Over the last 30 days the median price moved -15.6% and the number of listings moved +9.3%.

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: November 2026

Available

Lowest Price

€224 EUR

Highest Price

€4,516 EUR

Average Price

€772 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

20.0%

Price Spread

114.3%

30-Day Price Trend

-15.6%

30-Day Supply Change

+9.3%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$651/ct

10th Percentile

$191

Median

$651

90th Percentile

$1,904

Score Distribution

23 diamonds scored across 4 quality tiers

Excellent

10 (43.5%)

Very Good

6 (26.1%)

Good

4 (17.4%)

Average

3 (13.0%)

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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