How much does a 2.00 to 2.99ct J SI1 lab grown emerald diamond cost?

As of October 2026, 2.00 to 2.99ct J SI1 lab grown emerald diamonds typically cost £691 GBP to £1,872 GBP, with a median price of £743 GBP. There are currently 37 diamonds matching this specification available across retailers.

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

About 63% of these diamonds are available at multiple retailers, with an average price spread of 63%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 37 lab grown emerald diamonds with J colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £691 GBP to £1,872 GBP, with a median of £743 GBP. At least 16 retailers stock this exact specification, and 63% of the stones appear at more than one of them, with an average price spread of 63%. Half of all listings fall between £735 GBP and £1,378 GBP per carat. The same specification in natural form lists at a median of about £3,929 GBP per carat. Over the last 30 days the median price moved -10.4% and the number of listings moved -8.6%.

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

£683 GBP

Highest Price

£5,870 GBP

Average Price

£1,018 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

63.5%

Price Spread

62.8%

30-Day Price Trend

-10.4%

30-Day Supply Change

-8.6%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$1,363/ct

10th Percentile

$844

Median

$1,363

90th Percentile

$2,129

Score Distribution

38 diamonds scored across 4 quality tiers

Excellent

20 (52.6%)

Very Good

14 (36.8%)

Good

1 (2.6%)

Average

3 (7.9%)

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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