CaratHunter
Plans
Emerald|Lab Grown|IGI

3.09ct J SI2 Emerald Lab Grown Diamond

ID • J/SI2 • IGI LG445045493

Shape and cutting style on the report: Emerald cut

Certificate IGI LG445045493

Diamond specifications and retailer prices

From $381 AUD
As of November 6, 2026
Save $1,297 AUD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,103 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 3.09ct lab-grown emerald diamond

This 3.09ct lab-grown emerald sits in the three to five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445045493 or 445045493. Listed at 10 retailers as of November 6, 2026, with a 340% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.09
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.1°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445045493
Dimensions9.75 × 6.97 × 4.63 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
9.75 mm6.97 mm3.09 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445045493
Side View
Table 65.0%Crown 28.1°Girdle: Slightly ThickPavilion 38.9°Culet: LargeDepth 66.4%

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 6
Current: $2,103 AUD|Low: $381 AUD|High: $2,117 AUD|Avg: $955 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 7$381 AUD
Retailer 8$429 AUD
Retailer 2$443 AUD
Retailer 4$473 AUD
Retailer 9$473 AUD
Retailer 5$703 AUD
Retailer 3$937 AUD
Retailer 6$1,453 AUD
Retailer 10$1,678 AUD
MOH London$2,103 AUD

14 data points across 10 retailers

10 retailers$381 AUD to $1,678 AUD

A
Cheapest Retailer
-
$381 AUD
A
Retailer 2
-
$429 AUD
View
Final sale: no returns
A
Retailer 3
-
$443 AUD
View
Retailer 4
-
$473 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$473 AUD
View
B+
Retailer 6
-
$703 AUD
View
A
Retailer 7
-
$937 AUD
View
A
Retailer 8
-
$1,453 AUD
View
A
Retailer 9
-
$1,678 AUD
View
Most Expensive
MOH London
LG445045493 · Oct 29
$2,103 AUD
£1,159 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $381 AUDSave up to $1,297 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
3.09ct Emerald
$381 AUD