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Cushion|Lab Grown|IGI

1.22ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG808638760

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG808638760

Diamond specifications and retailer prices

From £386 GBP
$517 USD
As of October 30, 2026
Save £541 GBP (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,239 GBP at Brilliant Earth · As of September 23, 2026
View at Brilliant Earth

About this 1.22ct lab-grown cushion diamond

This 1.22ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG808638760 or 808638760. Listed at 5 retailers as of October 29, 2026, with a 140% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808638760
Dimensions7.55 × 5.41 × 3.60 mm
L/W Ratio1.40
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
7.55 mm5.41 mm1.22 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808638760
Side View
Table 62.0%Crown 34.2°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 66.5%

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 30
Current: £1,239 GBP|Low: £348 GBP|High: £1,239 GBP|Avg: £696 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5£386 GBP
Retailer 4£407 GBP
Retailer 6£478 GBP
Retailer 7£509 GBP
Retailer 2£596 GBP
Retailer 3£927 GBP
Retailer 8£936 GBP
Retailer 9£940 GBP
Brilliant Earth£1,239 GBP

24 data points across 9 retailers

5 retailers£386 GBP to £927 GBP

A
Cheapest Retailer
-
£386 GBP
$517 USD
A
Retailer 2
-
£407 GBP
$546 USD
View
A
Retailer 3
-
£596 GBP
$799 USD
View
B+
Retailer 4
-
£927 GBP
View
Most Expensive
Brilliant Earth
20188521A · Sep 23
£1,239 GBP
$1,660 USD
View
Price last confirmed 38 days ago
4 more retailers have this diamond
Prices start from £386 GBPSave up to £541 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
£386 GBP