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Emerald|Lab Grown|IGI

0.40ct E IF Emerald Lab Grown Diamond

EX • E/IF • IGI LG822610790

Shape and cutting style on the report: Emerald cut

Certificate IGI LG822610790

Diamond specifications and retailer prices

From £139 GBP
$185 USD
As of October 29, 2026
Save £660 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £799 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.4ct lab-grown emerald diamond

This 0.4ct lab-grown emerald sits in the sub-half-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG822610790 or 822610790. Listed at 16 retailers as of October 29, 2026, with prices from £139 to £799, a £660 spread on the same certified stone. MOH London lists it at £799. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.40
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.7°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG822610790
Dimensions5.09 × 3.44 × 2.36 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.09 mm3.44 mm0.40 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG822610790
Side View
Table 61.0%Crown 30.7°Girdle: MediumPavilion 34.1°Culet: LargeDepth 68.6%

Caratlytics Score

How it works →
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: Oct 29
Current: £799 GBP|Low: £131 GBP|High: £799 GBP|Avg: £351 GBP|+17.0%
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
Retailer 15
Retailer 16
October 29, 2026
Retailer 10£139 GBP
Retailer 16£164 GBP
Retailer 13£229 GBP
Retailer 3£278 GBP
Retailer 9£282 GBP
Retailer 2£306 GBP
Retailer 15£307 GBP
Retailer 11£321 GBP
Retailer 5£338 GBP
Retailer 14£342 GBP
Retailer 7£378 GBP
Retailer 6£381 GBP
Retailer 8£465 GBP
Retailer 12£549 GBP
Retailer 4£677 GBP
MOH London£799 GBP

20 data points across 16 retailers

16 retailers£139 GBP to £799 GBP

A
Retailer 1
-
£118 GBP
$157 USD
Price last confirmed 36 days ago
A
Retailer 2
-
£139 GBP
$185 USD
View
Final sale: no returns
A
Retailer 3
-
£144 GBP
$192 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
£164 GBP
$218 USD
View
A
Retailer 5
-
£229 GBP
$305 USD
View
B+
Retailer 6
-
£278 GBP
$370 USD
View
B+
Retailer 7
-
£282 GBP
€358 EUR
View
B+
Retailer 8
-
£306 GBP
View
B+
Retailer 9
-
£307 GBP
ZAR 6,614 ZAR
View
Retailer 10
-
£321 GBP
$428 USD
View
B+
Retailer 11
-
£338 GBP
$451 USD
View
B+
Retailer 12
-
£342 GBP
View
B+
Retailer 13
-
£381 GBP
A$781 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
£549 GBP
$731 USD
View
B
Retailer 15
-
£677 GBP
$901 USD
View
Most Expensive
B
MOH London
LG822610790 · Oct 29
£799 GBP
View
15 more retailers have this diamond
Prices start from £139 GBPSave up to £660 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
0.40ct Emerald
£139 GBP