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Cushion|Lab Grown|IGI

1.22ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG813630783

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG813630783

Diamond specifications and retailer prices

From £339 GBP
As of November 4, 2026
Save £1,129 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,469 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.22ct lab-grown cushion diamond

This 1.22ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813630783 or 813630783. Listed at 16 retailers as of November 3, 2026, with prices from £339 to £1,469, a £1,129 spread on the same certified stone. MOH London lists it at £1,469. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813630783
Dimensions7.86 × 5.66 × 3.78 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.86 mm5.66 mm1.22 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813630783
Side View
Table 60.0%Crown 30.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 66.8%

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 4
Current: £1,469 GBP|Low: £339 GBP|High: £1,902 GBP|Avg: £832 GBP|-22.8%
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 4£339 GBP
Retailer 14£376 GBP
Retailer 3£417 GBP
Retailer 12£485 GBP
Retailer 5£505 GBP
Retailer 16£547 GBP
Retailer 11£599 GBP
Retailer 9£612 GBP
Retailer 15£619 GBP
Retailer 10£648 GBP
Retailer 2£919 GBP
Retailer 13£1,193 GBP
Retailer 7£1,197 GBP
Retailer 8£1,234 GBP
Retailer 6£1,379 GBP
MOH London£1,469 GBP

39 data points across 16 retailers

16 retailers£339 GBP to £1,469 GBP

A
Cheapest Retailer
-
£339 GBP
Final sale: no returns
Retailer 2
-
£376 GBP
View
Price last confirmed 11 days ago
A
Retailer 3
-
£417 GBP
View
A
Retailer 4
-
£485 GBP
View
A
Retailer 5
-
£505 GBP
View
A
Retailer 6
-
£547 GBP
View
A
Retailer 7
-
£599 GBP
View
A
Retailer 8
-
£612 GBP
View
A
Retailer 9
-
£619 GBP
View
A
Retailer 10
-
£648 GBP
View
B+
Retailer 11
-
£919 GBP
View
Retailer 12
-
£1,193 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
£1,197 GBP
View
B
Retailer 14
-
£1,234 GBP
View
B
Retailer 15
-
£1,379 GBP
View
Most Expensive
B
MOH London
LG813630783 · Nov 3
£1,469 GBP
View
15 more retailers have this diamond
Prices start from £339 GBPSave up to £1,129 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
1.22ct Cushion
£339 GBP