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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 $1,313 AUD
$920 USD
As of November 2, 2026
Save $6,210 AUD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,522 AUD 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 $1,313 to $7,522, a $6,210 spread on the same certified stone. MOH London lists it at $7,522. 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
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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: $7,522 AUD|Low: $1,313 AUD|High: $7,624 AUD|Avg: $3,730 AUD
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$1,313 AUD
Retailer 8$2,270 AUD
Retailer 13$2,470 AUD
Retailer 14$2,543 AUD
Retailer 9$2,634 AUD
Retailer 12$2,634 AUD
Retailer 6$2,715 AUD
Retailer 3$2,875 AUD
Retailer 4$3,547 AUD
Retailer 10$4,144 AUD
Retailer 7$4,657 AUD
Retailer 11$4,937 AUD
MOH London$7,522 AUD
Retailer 5$7,542 AUD

21 data points across 14 retailers

11 retailers$1,313 AUD to $7,522 AUD

A
Cheapest Retailer
-
$1,313 AUD
$920 USD
B+
Retailer 2
-
$2,270 AUD
$1,591 USD
View
B+
Retailer 3
-
$2,470 AUD
$1,731 USD
View
B+
Retailer 4
-
$2,543 AUD
$1,782 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,634 AUD
$1,846 USD
View
Retailer 6
-
$2,634 AUD
$1,846 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
$2,875 AUD
$2,015 USD
View
B
Retailer 8
-
$4,144 AUD
$2,904 USD
View
B
Retailer 9
-
$4,657 AUD
$3,264 USD
View
B
Retailer 10
-
$4,937 AUD
$3,460 USD
View
Most Expensive
B
MOH London
LG425067414 · Nov 1
$7,522 AUD
£4,151 GBP
View
10 more retailers have this diamond
Prices start from $1,313 AUDSave up to $6,210 AUD

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
$1,313 AUD