How much does a 5.00ct+ J SI2 lab grown emerald diamond cost?

As of September 2026, 5.00ct+ J SI2 lab grown emerald diamonds typically cost $70,369 CAD to $116,433 CAD, with a median price of $94,714 CAD. There are currently 4 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

5.00ct+ J SI2 Lab Grown Emerald

Quick answer

As of September 2026, there are 4 lab grown emerald diamonds with J color and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $70,369 CAD to $116,433 CAD, with a median of $94,714 CAD. At least 4 retailers stock this exact specification. Half of all listings fall between $13,493 CAD and $17,505 CAD per carat. The same specification in natural form lists at a median of about $13,996 CAD per carat.

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Emerald lab grown stones in the index: 494 USD per carat, -6.7% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$69,239 CAD

Highest Price

$116,437 CAD

Average Price

$93,776 CAD

Market Intelligence

Retailers Selling

Price Spread

25.2%

Price Range

Price per carat distribution across retailers

$11,791/ct

10th Percentile

$7,131

Median

$11,791

90th Percentile

$17,094

Score Distribution

4 diamonds scored across 2 quality tiers

Good

1 (25.0%)

Average

3 (75.0%)

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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