How much does a 1.00 to 1.49ct E SI1 lab grown emerald diamond cost?

As of October 2026, 1.00 to 1.49ct E SI1 lab grown emerald diamonds typically cost $150 USD to $842 USD, with a median price of $467 USD. There are currently 337 diamonds matching this specification available across retailers.

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

About 30% of these diamonds are available at multiple retailers, with an average price spread of 86%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct E SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 337 lab grown emerald diamonds with E color and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $150 USD to $842 USD, with a median of $467 USD. At least 38 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 86%. Half of all listings fall between $218 USD and $583 USD per carat. The same specification in natural form lists at a median of about $3,840 USD per carat. Over the last 30 days the median price moved +2.1% and the number of listings moved +25.5%.

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

337

Lowest Price

$106 USD

Highest Price

$2,400 USD

Average Price

$485 USD

Market Intelligence

Retailers Selling

Cross Retailer %

30.3%

Price Spread

85.8%

30-Day Price Trend

+2.1%

30-Day Supply Change

+25.5%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$426/ct

10th Percentile

$154

Median

$426

90th Percentile

$934

Score Distribution

922 diamonds scored across 4 quality tiers

Excellent

210 (22.8%)

Very Good

60 (6.5%)

Good

179 (19.4%)

Average

473 (51.3%)

Find Your Diamond

Search 337 E SI1 emerald diamonds and compare prices.

Search Diamonds

Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

E SI2SI2 inclusions are not visible without magnification

Save 7%

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