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 £199 GBP
$267 USD
As of October 30, 2026
Save £899 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,099 GBP 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 October 29, 2026, with prices from £199 to £1,099, a £899 spread on the same certified stone. MOH London lists it at £1,099. 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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Price History

Last verified: Oct 30
Current: £1,099 GBP|Low: £199 GBP|High: £1,106 GBP|Avg: £500 GBP|+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£199 GBP
Retailer 8£224 GBP
Retailer 2£231 GBP
Retailer 4£247 GBP
Retailer 9£247 GBP
Retailer 5£367 GBP
Retailer 3£490 GBP
Retailer 6£759 GBP
Retailer 10£877 GBP
MOH London£1,099 GBP

15 data points across 10 retailers

10 retailers£199 GBP to £1,099 GBP

A
Cheapest Retailer
-
£199 GBP
$267 USD
A
Retailer 2
-
£224 GBP
$300 USD
View
Final sale: no returns
A
Retailer 3
-
£231 GBP
$310 USD
View
A
Retailer 4
-
£247 GBP
$331 USD
View
A
Retailer 5
-
£247 GBP
$331 USD
View
B+
Retailer 6
-
£367 GBP
$492 USD
View
A
Retailer 7
-
£490 GBP
$656 USD
View
A
Retailer 8
-
£759 GBP
$1,017 USD
View
A
Retailer 9
-
£877 GBP
$1,175 USD
View
Most Expensive
A
MOH London
LG445045493 · Oct 29
£1,099 GBP
View
9 more retailers have this diamond
Prices start from £199 GBPSave up to £899 GBP

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
£199 GBP