Emerald|Lab Grown|IGI

1.66ct J SI1 Emerald Lab Grown Diamond

ID • J/SI1 • IGI LG425067414

Shape and cutting style on the report: Emerald cut

Certificate IGI LG425067414

Diamond specifications and retailer prices

From $1,635 NZD
$920 USD
As of November 2, 2026
Save $7,734 NZD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,370 NZD at MOH London · As of November 1, 2026
View at MOH London

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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067414 or 425067414. Listed at 11 retailers as of November 1, 2026, with prices from $1,635 to $9,370, a $7,734 spread on the same certified stone. MOH London lists it at $9,370. 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
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle28.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067414
Dimensions7.98 × 5.55 × 3.80 mm
L/W Ratio1.44
Culet sizeLong
Cert comments
undefined
Top View
7.98 mm5.55 mm1.66 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067414
Side View
Table 61.5%Crown 28.1°Girdle: Slightly ThickPavilion 40.5°Culet: LNGDepth 68.5%

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: Nov 2
Current: $9,370 NZD|Low: $1,635 NZD|High: $9,496 NZD|Avg: $4,647 NZD
MOH London
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 1, 2026
Retailer 2$1,635 NZD
Retailer 8$2,828 NZD
Retailer 13$3,077 NZD
Retailer 14$3,167 NZD
Retailer 9$3,281 NZD
Retailer 12$3,281 NZD
Retailer 6$3,382 NZD
Retailer 3$3,581 NZD
Retailer 4$4,418 NZD
Retailer 10$5,161 NZD
Retailer 7$5,801 NZD
Retailer 11$6,149 NZD
MOH London$9,370 NZD
Retailer 5$9,394 NZD

21 data points across 14 retailers

11 retailers$1,635 NZD to $9,370 NZD

A
Cheapest Retailer
-
$1,635 NZD
$920 USD
B+
Retailer 2
-
$2,828 NZD
$1,591 USD
View
B+
Retailer 3
-
$3,077 NZD
$1,731 USD
View
B+
Retailer 4
-
$3,167 NZD
$1,782 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,281 NZD
$1,846 USD
View
Retailer 6
-
$3,281 NZD
$1,846 USD
View
Price last confirmed 21 days ago
B
Retailer 7
-
$3,581 NZD
$2,015 USD
View
B
Retailer 8
-
$5,161 NZD
$2,904 USD
View
B
Retailer 9
-
$5,801 NZD
$3,264 USD
View
B
Retailer 10
-
$6,149 NZD
$3,460 USD
View
Most Expensive
B
MOH London
LG425067414 · Nov 1
$9,370 NZD
£4,151 GBP
View
10 more retailers have this diamond
Prices start from $1,635 NZDSave up to $7,734 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
$1,635 NZD