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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 $717 USD
As of October 31, 2026
Save $2,411 USD (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,128 USD 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 October 31, 2026, with prices from $717 to $3,128, a $2,411 spread on the same certified stone. MOH London lists it at $3,128. 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
Color
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

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 31
Current: $3,128 USD|Low: $710 USD|High: $3,630 USD|Avg: $1,765 USD|-0.2%
MOH London
Retailer 2
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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 15$717 USD
Retailer 5$743 USD
Retailer 17$920 USD
Retailer 4$989 USD
Retailer 2$1,176 USD
Retailer 3$1,205 USD
Retailer 19$1,213 USD
Retailer 12$1,361 USD
Retailer 16$1,364 USD
Retailer 10$1,680 USD
Retailer 6$1,739 USD
Retailer 13$1,849 USD
Retailer 9$2,316 USD
Retailer 18$2,480 USD
Retailer 11$2,514 USD
Retailer 14$2,540 USD
Retailer 8$2,563 USD
Retailer 7$2,598 USD
MOH London$3,128 USD

35 data points across 19 retailers

20 retailers$717 USD to $3,128 USD

A
Cheapest Retailer
-
$717 USD
Final sale: no returns
Retailer 2
-
$743 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$920 USD
View
A
Retailer 4
-
$989 USD
View
A
Retailer 5
-
$1,176 USD
£926 GBP
View
A
Retailer 6
-
$1,205 USD
View
A
Retailer 7
-
$1,213 USD
View
B+
Retailer 8
-
$1,361 USD
€1,296 EUR
View
A
Retailer 9
-
$1,364 USD
ZAR 22,043 ZAR
View
Retailer 10
-
$1,680 USD
A$2,585 AUD
View
Price last confirmed 24 days ago
B+
Retailer 11
-
$1,739 USD
View
B+
Retailer 12
-
$1,849 USD
A$2,845 AUD
View
B
Retailer 13
-
$2,316 USD
£1,824 GBP
View
Retailer 14
-
$2,480 USD
View
Price last confirmed 11 days ago
B
Retailer 15
-
$2,514 USD
View
B
Retailer 16
-
$2,540 USD
View
B
Retailer 17
-
$2,563 USD
View
B
Retailer 18
-
$2,598 USD
View
B
Retailer 19
-
$2,766 USD
View
Most Expensive
B
MOH London
LG665409007 · Nov 1
$3,128 USD
£2,463 GBP
View
19 more retailers have this diamond
Prices start from $717 USDSave up to $2,411 USD

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
$717 USD