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Cushion|Lab Grown|IGI

1.57ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG638415667

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG638415667

Diamond specifications and retailer prices

From £537 GBP
$719 USD
As of November 1, 2026
Save £1,916 GBP (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,453 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.57ct lab-grown cushion diamond

This 1.57ct 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 LG638415667 or 638415667. Listed at 21 retailers as of October 26, 2026, with prices from £537 to £2,453, a £1,916 spread on the same certified stone. MOH London lists it at £2,453. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638415667
Dimensions7.71 × 6.21 × 4.23 mm
L/W Ratio1.24
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
7.71 mm6.21 mm1.57 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638415667
Side View
Table 64.0%Crown 36.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 68.1%

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 1
Current: £2,453 GBP|Low: £509 GBP|High: £2,483 GBP|Avg: £1,286 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2£537 GBP
Retailer 3£564 GBP
Retailer 7£649 GBP
Retailer 5£876 GBP
Retailer 6£941 GBP
Retailer 10£970 GBP
Retailer 12£1,223 GBP
Retailer 8£1,315 GBP
Retailer 4£1,710 GBP
Retailer 11£1,832 GBP
Retailer 9£2,261 GBP
MOH London£2,453 GBP

34 data points across 12 retailers

21 retailers£537 GBP to £2,453 GBP

A
Cheapest Retailer
-
£537 GBP
$719 USD
Final sale: no returns
Retailer 2
-
£564 GBP
$756 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£649 GBP
$870 USD
View
A
Retailer 4
-
£722 GBP
$967 USD
View
A
Retailer 5
-
£755 GBP
$1,012 USD
View
A
Retailer 6
-
£876 GBP
View
A
Retailer 7
-
£893 GBP
$1,196 USD
View
A
Retailer 8
-
£941 GBP
€1,201 EUR
View
A
Retailer 9
-
£970 GBP
ZAR 20,995 ZAR
View
Retailer 10
-
£975 GBP
A$2,011 AUD
View
Price last confirmed 157 days ago
B+
Retailer 11
-
£1,223 GBP
$1,639 USD
View
B+
Retailer 12
-
£1,315 GBP
A$2,710 AUD
View
B+
Retailer 13
-
£1,638 GBP
View
B+
Retailer 14
-
£1,710 GBP
$2,291 USD
View
B
Retailer 15
-
£1,802 GBP
$2,414 USD
View
B
Retailer 16
-
£1,824 GBP
$2,444 USD
View
Retailer 17
-
£1,832 GBP
$2,455 USD
View
Price last confirmed 11 days ago
B
Retailer 18
-
£1,866 GBP
$2,500 USD
View
B
Retailer 19
-
£2,261 GBP
$3,030 USD
View
B
Retailer 20
-
£2,418 GBP
$3,240 USD
View
Most Expensive
B
MOH London
LG638415667 · Oct 26
£2,453 GBP
View
20 more retailers have this diamond
Prices start from £537 GBPSave up to £1,916 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
1.57ct Cushion
£537 GBP