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Emerald|Lab Grown|IGI

1.66ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG626437419

Shape and cutting style on the report: Emerald cut

Certificate IGI LG626437419

Diamond specifications and retailer prices

From $376 NZD
$212 USD
As of November 1, 2026
Save $1,788 NZD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,165 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.66ct lab-grown emerald diamond

This 1.66ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG626437419 or 626437419. Listed at 15 retailers as of October 31, 2026, with prices from $376 to $2,165, a $1,788 spread on the same certified stone. Brilliant Earth lists it at $2,165. 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

1.66
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle43.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626437419
Dimensions8.31 × 5.68 × 3.72 mm
L/W Ratio1.46
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
8.31 mm5.68 mm1.66 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626437419
Side View
Table 64.0%Crown 34.7°Girdle: MediumPavilion 43.6°Culet: LNGDepth 65.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $2,165 NZD|Low: $312 NZD|High: $2,271 NZD|Avg: $1,097 NZD|-4.7%
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
November 2, 2026
Retailer 3$376 NZD
Retailer 10$436 NZD
Retailer 12$467 NZD
Retailer 13$467 NZD
Retailer 8$725 NZD
Retailer 5$804 NZD
Retailer 2$865 NZD
Retailer 4$1,063 NZD
Retailer 14$1,503 NZD
Retailer 11$1,508 NZD
Retailer 7$1,623 NZD
Retailer 9$1,884 NZD
Retailer 6$1,957 NZD
Brilliant Earth$2,165 NZD

40 data points across 14 retailers

15 retailers$376 NZD to $2,165 NZD

A
Cheapest Retailer
-
$376 NZD
$212 USD
A
Retailer 2
-
$436 NZD
$246 USD
View
A
Retailer 3
-
$467 NZD
$263 USD
View
Retailer 4
-
$467 NZD
$263 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$725 NZD
€389 EUR
View
B+
Retailer 6
-
$804 NZD
$453 USD
View
B+
Retailer 7
-
$865 NZD
£384 GBP
View
B+
Retailer 8
-
$1,063 NZD
$599 USD
View
B
Retailer 9
-
$1,503 NZD
$847 USD
View
B
Retailer 10
-
$1,508 NZD
$850 USD
View
B
Retailer 11
-
$1,606 NZD
$905 USD
View
B
Retailer 12
-
$1,623 NZD
$915 USD
View
B
Retailer 13
-
$1,884 NZD
£836 GBP
View
B
Retailer 14
-
$1,957 NZD
$1,103 USD
View
Most Expensive
B
Brilliant Earth
9811875A · Oct 31
$2,165 NZD
$1,220 USD
View
14 more retailers have this diamond
Prices start from $376 NZDSave up to $1,788 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
1.66ct Emerald
$376 NZD