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Emerald|Lab Grown|IGI

0.40ct F IF Emerald Lab Grown Diamond

EX • F/IF • IGI LG828618437

Shape and cutting style on the report: Emerald cut

Certificate IGI LG828618437

Diamond specifications and retailer prices

From £132 GBP
As of November 5, 2026
Save £620 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £752 GBP at MOH London · As of November 5, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828618437 or 828618437. Listed at 18 retailers as of November 5, 2026, with prices from £132 to £752, a £620 spread on the same certified stone. MOH London lists it at £752. 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
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828618437
Dimensions5.38 × 3.53 × 2.18 mm
L/W Ratio1.52
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.38 mm3.53 mm0.40 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828618437
Side View
Table 70.0%Crown 31°Girdle: MED-STKPavilion 33°Culet: LargeDepth 61.8%

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: Nov 5
Current: £752 GBP|Low: £125 GBP|High: £757 GBP|Avg: £329 GBP|+16.0%
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
November 5, 2026
Retailer 6£132 GBP
Retailer 5£144 GBP
Retailer 4£219 GBP
Retailer 13£222 GBP
Retailer 15£268 GBP
Retailer 2£286 GBP
Retailer 12£293 GBP
Retailer 16£305 GBP
Retailer 7£318 GBP
Retailer 11£321 GBP
Retailer 8£355 GBP
Retailer 10£419 GBP
Retailer 14£437 GBP
Retailer 3£516 GBP
Retailer 9£646 GBP
MOH London£752 GBP

22 data points across 16 retailers

18 retailers£132 GBP to £752 GBP

Retailer 1
-
£112 GBP
Price last confirmed 43 days ago
A
Retailer 2
-
£132 GBP
View
Final sale: no returns
Retailer 3
-
£136 GBP
View
Price last confirmed 43 days ago
A
Retailer 4
-
£144 GBP
View
A
Retailer 5
-
£219 GBP
View
A
Retailer 6
-
£222 GBP
View
Retailer 7
-
£268 GBP
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£275 GBP
View
B+
Retailer 9
-
£286 GBP
View
B+
Retailer 10
-
£293 GBP
View
B+
Retailer 11
-
£318 GBP
View
B+
Retailer 12
-
£321 GBP
View
Retailer 13
-
£355 GBP
View
Price last confirmed 35 days ago
B
Retailer 14
-
£419 GBP
View
B
Retailer 15
-
£437 GBP
View
B
Retailer 16
-
£516 GBP
View
B
Retailer 17
-
£646 GBP
View
Most Expensive
B
MOH London
LG828618437 · Nov 5
£752 GBP
View
17 more retailers have this diamond
Prices start from £132 GBPSave up to £620 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
£132 GBP