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 $475 NZD
As of November 6, 2026
Save $1,615 NZD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,618 NZD 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

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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 6
Current: $2,618 NZD|Low: $475 NZD|High: $2,636 NZD|Avg: $1,189 NZD|+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$475 NZD
Retailer 8$534 NZD
Retailer 2$551 NZD
Retailer 4$589 NZD
Retailer 9$589 NZD
Retailer 5$875 NZD
Retailer 3$1,167 NZD
Retailer 6$1,809 NZD
Retailer 10$2,090 NZD
MOH London$2,618 NZD

14 data points across 10 retailers

10 retailers$475 NZD to $2,090 NZD

A
Cheapest Retailer
-
$475 NZD
A
Retailer 2
-
$534 NZD
View
Final sale: no returns
A
Retailer 3
-
$551 NZD
View
Retailer 4
-
$589 NZD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$589 NZD
View
B+
Retailer 6
-
$875 NZD
View
A
Retailer 7
-
$1,167 NZD
View
A
Retailer 8
-
$1,809 NZD
View
A
Retailer 9
-
$2,090 NZD
View
Most Expensive
MOH London
LG445045493 · Oct 29
$2,618 NZD
£1,159 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $475 NZDSave up to $1,615 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
3.09ct Emerald
$475 NZD