How much does a 5.00ct+ E SI1 lab grown emerald diamond cost?

As of October 2026, 5.00ct+ E SI1 lab grown emerald diamonds typically cost $1,012 NZD to $6,623 NZD, with a median price of $2,341 NZD. There are currently 46 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 116%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ E SI1 Lab Grown Emerald

Quick answer

As of October 2026, there are 46 lab grown emerald diamonds with E colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $1,012 NZD to $6,623 NZD, with a median of $2,341 NZD. At least 19 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 116%. Half of all listings fall between $342 NZD and $1,216 NZD per carat. The same specification in natural form lists at a median of about $52,059 NZD per carat.

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

$903 NZD

Highest Price

$32,993 NZD

Average Price

$3,906 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

30.0%

Price Spread

115.9%

Price Range

Price per carat distribution across retailers

$424/ct

10th Percentile

$142

Median

$424

90th Percentile

$949

Score Distribution

105 diamonds scored across 4 quality tiers

Excellent

29 (27.6%)

Very Good

12 (11.4%)

Good

23 (21.9%)

Average

41 (39.0%)

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Consider Instead

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

F SI1F colour is visually identical to E to the naked eye

Save 40%

E SI2SI2 inclusions are not visible without magnification

Save 38%

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