How much does a 0.50 to 0.74ct I SI1 lab grown emerald diamond cost?

As of November 2026, 0.50 to 0.74ct I SI1 lab grown emerald diamonds typically cost €133 EUR to €419 EUR, with a median price of €318 EUR. There are currently 28 diamonds matching this specification available across retailers.

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

About 73% of these diamonds are available at multiple retailers, with an average price spread of 122%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I SI1 Lab Grown Emerald

Quick answer

As of November 2026, there are 28 lab grown emerald diamonds with I color and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run €133 EUR to €419 EUR, with a median of €318 EUR. At least 20 retailers stock this exact specification, and 73% of the stones appear at more than one of them, with an average price spread of 122%. Half of all listings fall between €371 EUR and €1,106 EUR per carat. The same specification in natural form lists at a median of about €1,000 EUR per carat. Over the last 30 days the median price moved -7.1% and the number of listings moved -0.7%.

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

€88 EUR

Highest Price

€1,947 EUR

Average Price

€365 EUR

Market Intelligence

Retailers Selling

Cross Retailer %

73.3%

Price Spread

122.1%

30-Day Price Trend

-7.1%

30-Day Supply Change

-0.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$673/ct

10th Percentile

$284

Median

$673

90th Percentile

$2,142

Score Distribution

32 diamonds scored across 4 quality tiers

Excellent

10 (31.3%)

Very Good

17 (53.1%)

Good

3 (9.4%)

Average

2 (6.3%)

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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