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Cushion|Lab Grown|IGI

1.55ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG812627386

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812627386

Diamond specifications and retailer prices

From £476 GBP
$638 USD
As of October 30, 2026
Save £994 GBP (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,470 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812627386 or 812627386. Listed at 8 retailers as of October 29, 2026, with prices from £476 to £1,470, a £994 spread on the same certified stone. MOH London lists it at £1,470. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812627386
Dimensions8.12 × 5.82 × 3.88 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
8.12 mm5.82 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812627386
Side View
Table 60.0%Crown 36.1°Girdle: STK-THKPavilion 32.8°Culet: NoneDepth 66.7%

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: £1,470 GBP|Low: £476 GBP|High: £1,481 GBP|Avg: £857 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4£476 GBP
Retailer 6£556 GBP
Retailer 3£593 GBP
Retailer 2£615 GBP
Retailer 7£822 GBP
Retailer 5£1,190 GBP
Retailer 8£1,230 GBP
MOH London£1,470 GBP

43 data points across 8 retailers

8 retailers£476 GBP to £1,470 GBP

A
Cheapest Retailer
-
£476 GBP
$638 USD
A
Retailer 2
-
£556 GBP
$745 USD
View
A
Retailer 3
-
£593 GBP
€757 EUR
View
A
Retailer 4
-
£615 GBP
View
A
Retailer 5
-
£822 GBP
$1,101 USD
View
Retailer 6
-
£1,190 GBP
A$2,453 AUD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
£1,230 GBP
$1,648 USD
View
Most Expensive
B+
MOH London
LG812627386 · Oct 29
£1,470 GBP
View
7 more retailers have this diamond
Prices start from £476 GBPSave up to £994 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
1.55ct Cushion
£476 GBP