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Cushion|Lab Grown|IGI

1.57ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG618401771

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG618401771

Diamond specifications and retailer prices

From $919 SGD
$719 USD
As of November 1, 2026
Save $3,721 SGD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,641 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG618401771 or 618401771. Listed at 16 retailers as of October 31, 2026, with prices from $919 to $4,641, a $3,721 spread on the same certified stone. Brilliant Earth lists it at $4,641. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.8°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618401771
Dimensions7.86 × 6.27 × 4.21 mm
L/W Ratio1.25
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
7.86 mm6.27 mm1.57 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG618401771
Side View
Table 60.0%Crown 35.8°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 67.1%

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 1
Current: $4,641 SGD|Low: $873 SGD|High: $4,641 SGD|Avg: $1,962 SGD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$919 SGD
Retailer 3$966 SGD
Retailer 12$1,006 SGD
Retailer 7$1,112 SGD
Retailer 4$1,236 SGD
Retailer 6$1,464 SGD
Retailer 2$1,514 SGD
Retailer 9$1,661 SGD
Retailer 8$2,095 SGD
Retailer 11$2,929 SGD
Retailer 5$4,197 SGD
Brilliant Earth$4,641 SGD

41 data points across 12 retailers

16 retailers$919 SGD to $4,641 SGD

A
Cheapest Retailer
-
$919 SGD
$719 USD
Final sale: no returns
Retailer 2
-
$966 SGD
$756 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$1,112 SGD
$870 USD
View
A
Retailer 4
-
$1,236 SGD
$967 USD
View
A
Retailer 5
-
$1,294 SGD
$1,012 USD
View
A
Retailer 6
-
$1,464 SGD
€1,091 EUR
View
A
Retailer 7
-
$1,514 SGD
£932 GBP
View
A
Retailer 8
-
$1,529 SGD
$1,196 USD
View
A
Retailer 9
-
$1,661 SGD
ZAR 20,995 ZAR
View
B+
Retailer 10
-
$2,095 SGD
$1,639 USD
View
B+
Retailer 11
-
$2,806 SGD
£1,728 GBP
View
B+
Retailer 12
-
$2,929 SGD
$2,291 USD
View
B
Retailer 13
-
$3,125 SGD
$2,444 USD
View
B
Retailer 14
-
$3,196 SGD
$2,500 USD
View
B
Retailer 15
-
$4,197 SGD
£2,585 GBP
View
Most Expensive
B
Brilliant Earth
12221907A · Oct 31
$4,641 SGD
$3,630 USD
View
15 more retailers have this diamond
Prices start from $919 SGDSave up to $3,721 SGD

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
$919 SGD