How much does a 0.50 to 0.74ct I SI2 lab grown emerald diamond cost?

As of October 2026, 0.50 to 0.74ct I SI2 lab grown emerald diamonds typically cost $244 USD to $368 USD, with a median price of $263 USD. There are currently 7 diamonds matching this specification available across retailers.

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

About 78% of these diamonds are available at multiple retailers, with an average price spread of 89%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I SI2 Lab Grown Emerald

Quick answer

As of October 2026, there are 7 lab grown emerald diamonds with I color and SI2 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $244 USD to $368 USD, with a median of $263 USD. At least 15 retailers stock this exact specification, and 78% of the stones appear at more than one of them, with an average price spread of 89%. Half of all listings fall between $553 USD and $1,161 USD per carat. The same specification in natural form lists at a median of about $1,007 USD per carat. Over the last 30 days the median price moved -3.1% and the number of listings moved -2.9%.

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

$244 USD

Highest Price

$1,807 USD

Average Price

$288 USD

Market Intelligence

Retailers Selling

Cross Retailer %

77.8%

Price Spread

89.3%

30-Day Price Trend

-3.1%

30-Day Supply Change

-2.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$681/ct

10th Percentile

$432

Median

$681

90th Percentile

$2,083

Score Distribution

8 diamonds scored across 3 quality tiers

Excellent

2 (25.0%)

Very Good

5 (62.5%)

Good

1 (12.5%)

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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