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Cushion|Lab Grown|IGI

1.57ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG665409007

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG665409007

Diamond specifications and retailer prices

From £594 GBP
$796 USD
As of November 1, 2026
Save £1,740 GBP (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,335 GBP at MOH London · As of November 1, 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 very-good cut grade and certified by IGI LG665409007 or 665409007. Listed at 20 retailers as of November 1, 2026, with prices from £594 to £2,335, a £1,740 spread on the same certified stone. MOH London lists it at £2,335. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.57
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle43.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409007
Dimensions6.90 × 6.58 × 4.76 mm
L/W Ratio1.05
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
6.90 mm6.58 mm1.57 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665409007
Side View
Table 62.0%Crown 38.7°Girdle: ThickPavilion 43.5°Culet: NoneDepth 72.3%

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 1
Current: £2,335 GBP|Low: £530 GBP|High: £2,709 GBP|Avg: £1,318 GBP|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 5£555 GBP
Retailer 2£594 GBP
Retailer 17£687 GBP
Retailer 4£738 GBP
Retailer 12£878 GBP
Retailer 3£899 GBP
Retailer 19£905 GBP
Retailer 13£1,016 GBP
Retailer 16£1,018 GBP
Retailer 10£1,254 GBP
Retailer 6£1,298 GBP
Retailer 14£1,380 GBP
Retailer 9£1,729 GBP
Retailer 18£1,851 GBP
Retailer 11£1,876 GBP
Retailer 15£1,896 GBP
Retailer 8£1,913 GBP
Retailer 7£1,939 GBP
MOH London£2,335 GBP

35 data points across 19 retailers

20 retailers£594 GBP to £2,335 GBP

Retailer 1
-
£555 GBP
$743 USD
Price last confirmed 16 days ago
A
Retailer 2
-
£594 GBP
$796 USD
View
Final sale: no returns
A
Retailer 3
-
£687 GBP
$920 USD
View
A
Retailer 4
-
£738 GBP
$989 USD
View
A
Retailer 5
-
£878 GBP
View
A
Retailer 6
-
£899 GBP
$1,205 USD
View
A
Retailer 7
-
£905 GBP
$1,213 USD
View
B+
Retailer 8
-
£1,016 GBP
€1,296 EUR
View
A
Retailer 9
-
£1,018 GBP
ZAR 22,043 ZAR
View
Retailer 10
-
£1,254 GBP
A$2,585 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
£1,298 GBP
$1,739 USD
View
B+
Retailer 12
-
£1,380 GBP
A$2,845 AUD
View
B
Retailer 13
-
£1,729 GBP
View
Retailer 14
-
£1,851 GBP
$2,480 USD
View
Price last confirmed 11 days ago
B
Retailer 15
-
£1,876 GBP
$2,514 USD
View
B
Retailer 16
-
£1,896 GBP
$2,540 USD
View
B
Retailer 17
-
£1,913 GBP
$2,563 USD
View
B
Retailer 18
-
£1,939 GBP
$2,598 USD
View
B
Retailer 19
-
£2,064 GBP
$2,766 USD
View
Most Expensive
B
MOH London
LG665409007 · Nov 1
£2,335 GBP
View
19 more retailers have this diamond
Prices start from £594 GBPSave up to £1,740 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
£594 GBP