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

As of October 2026, 0.50 to 0.74ct E SI1 lab grown emerald diamonds typically cost $120 USD to $630 USD, with a median price of $375 USD. There are currently 90 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 90%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct E SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 90 lab grown emerald diamonds with E color and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $120 USD to $630 USD, with a median of $375 USD. At least 37 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 90%. Half of all listings fall between $296 USD and $756 USD per carat. The same specification in natural form lists at a median of about $1,427 USD per carat. Over the last 30 days the median price moved -2.6% and the number of listings moved -0.5%.

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

$86 USD

Highest Price

$1,408 USD

Average Price

$362 USD

Market Intelligence

Retailers Selling

Cross Retailer %

33.2%

Price Spread

89.9%

30-Day Price Trend

-2.6%

30-Day Supply Change

-0.5%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$512/ct

10th Percentile

$196

Median

$512

90th Percentile

$1,084

Score Distribution

177 diamonds scored across 4 quality tiers

Excellent

45 (25.4%)

Very Good

21 (11.9%)

Good

55 (31.1%)

Average

56 (31.6%)

Find Your Diamond

Search 90 E SI1 emerald diamonds and compare prices.

Search Diamonds

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