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Cushion|Lab Grown|IGI

1.48ct F IF Cushion Lab Grown Diamond

ID • F/IF • IGI LG656488122

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG656488122

Diamond specifications and retailer prices

From £265 GBP
As of November 6, 2026
Save £909 GBP (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,032 GBP at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.48ct lab-grown cushion diamond

This 1.48ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG656488122 or 656488122. Listed at 14 retailers as of November 5, 2026, with a 343% 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

1.48
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656488122
Dimensions6.67 × 6.55 × 4.46 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
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
6.67 mm6.55 mm1.48 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656488122
Side View
Table 61.0%Crown 35.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 68.1%

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 6
Current: £2,032 GBP|Low: £265 GBP|High: £2,032 GBP|Avg: £691 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4£265 GBP
Retailer 3£294 GBP
Retailer 12£396 GBP
Retailer 9£411 GBP
Retailer 13£477 GBP
Retailer 5£486 GBP
Retailer 8£507 GBP
Retailer 2£519 GBP
Retailer 7£722 GBP
Retailer 11£741 GBP
Retailer 10£1,169 GBP
Retailer 6£1,174 GBP
Brilliant Earth£2,032 GBP

44 data points across 13 retailers

14 retailers£265 GBP to £1,174 GBP

A
Cheapest Retailer
-
£265 GBP
Final sale: no returns
Retailer 2
-
£294 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
£396 GBP
View
A
Retailer 4
-
£411 GBP
View
A
Retailer 5
-
£486 GBP
View
A
Retailer 6
-
£507 GBP
View
A
Retailer 7
-
£519 GBP
View
A
Retailer 8
-
£722 GBP
View
A
Retailer 9
-
£741 GBP
View
A
Retailer 10
-
£884 GBP
View
B+
Retailer 11
-
£979 GBP
View
B+
Retailer 12
-
£1,169 GBP
View
B+
Retailer 13
-
£1,174 GBP
View
Most Expensive
Brilliant Earth
21385733A · Oct 8
£2,032 GBP
$2,720 USD
View
Price last confirmed 29 days ago
13 more retailers have this diamond
Prices start from £265 GBPSave up to £909 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
1.48ct Cushion
£265 GBP