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Emerald|Lab Grown|IGI

2.50ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG594321590

Shape and cutting style on the report: Emerald cut

Certificate IGI LG594321590

Diamond specifications and retailer prices

From $543 NZD
$306 USD
As of October 30, 2026
Save $3,627 NZD (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,170 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.5ct lab-grown emerald diamond

This 2.5ct lab-grown emerald sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG594321590 or 594321590. Listed at 15 retailers as of October 29, 2026, with prices from $543 to $4,170, a $3,627 spread on the same certified stone. Brilliant Earth lists it at $4,170. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594321590
Dimensions9.01 × 6.39 × 4.34 mm
L/W Ratio1.41
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.01 mm6.39 mm2.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594321590
Side View
Table 64.0%Crown 38°Girdle: MediumPavilion 39.4°Culet: LNGDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,170 NZD|Low: $447 NZD|High: $4,436 NZD|Avg: $1,552 NZD|-6.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 8$522 NZD
Retailer 4$543 NZD
Retailer 12$630 NZD
Retailer 15$672 NZD
Retailer 16$672 NZD
Retailer 11$949 NZD
Retailer 9$1,000 NZD
Retailer 5$1,098 NZD
Retailer 2$1,196 NZD
Retailer 6$1,334 NZD
Retailer 13$2,067 NZD
Retailer 3$2,163 NZD
Retailer 10$2,711 NZD
Retailer 14$3,158 NZD
Retailer 7$3,424 NZD
Brilliant Earth$4,170 NZD

40 data points across 16 retailers

15 retailers$543 NZD to $4,170 NZD

A
Cheapest Retailer
-
$543 NZD
$306 USD
A
Retailer 2
-
$630 NZD
$355 USD
View
A
Retailer 3
-
$672 NZD
$379 USD
View
A
Retailer 4
-
$672 NZD
$379 USD
View
A
Retailer 5
-
$949 NZD
$535 USD
View
A
Retailer 6
-
$1,000 NZD
€537 EUR
View
B+
Retailer 7
-
$1,098 NZD
$619 USD
View
B+
Retailer 8
-
$1,196 NZD
£531 GBP
View
B+
Retailer 9
-
$1,334 NZD
$752 USD
View
B
Retailer 10
-
$2,067 NZD
$1,165 USD
View
B
Retailer 11
-
$2,163 NZD
$1,219 USD
View
B
Retailer 12
-
$2,711 NZD
£1,203 GBP
View
B
Retailer 13
-
$3,158 NZD
$1,780 USD
View
B
Retailer 14
-
$3,424 NZD
$1,930 USD
View
Most Expensive
B
Brilliant Earth
7880824A · Oct 29
$4,170 NZD
$2,350 USD
View
14 more retailers have this diamond
Prices start from $543 NZDSave up to $3,627 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.50ct Emerald
$543 NZD