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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 $1,026 AUD
$719 USD
As of November 1, 2026
Save $4,154 AUD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,180 AUD at Brilliant Earth · As of November 2, 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 November 1, 2026, with prices from $1,026 to $5,180, a $4,154 spread on the same certified stone. Brilliant Earth lists it at $5,180. 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: $5,180 AUD|Low: $975 AUD|High: $5,180 AUD|Avg: $2,173 AUD
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$1,026 AUD
Retailer 3$1,079 AUD
Retailer 12$1,123 AUD
Retailer 9$1,241 AUD
Retailer 4$1,380 AUD
Retailer 8$1,635 AUD
Retailer 6$1,689 AUD
Retailer 5$1,854 AUD
Retailer 2$2,357 AUD
Retailer 11$3,269 AUD
Retailer 7$4,684 AUD
Brilliant Earth$5,180 AUD

40 data points across 12 retailers

16 retailers$1,026 AUD to $5,180 AUD

A
Cheapest Retailer
-
$1,026 AUD
$719 USD
Final sale: no returns
Retailer 2
-
$1,079 AUD
$756 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$1,241 AUD
$870 USD
View
A
Retailer 4
-
$1,380 AUD
$967 USD
View
A
Retailer 5
-
$1,444 AUD
$1,012 USD
View
A
Retailer 6
-
$1,635 AUD
€1,091 EUR
View
A
Retailer 7
-
$1,689 AUD
£932 GBP
View
A
Retailer 8
-
$1,707 AUD
$1,196 USD
View
A
Retailer 9
-
$1,854 AUD
ZAR 20,996 ZAR
View
B+
Retailer 10
-
$2,357 AUD
$1,652 USD
View
B+
Retailer 11
-
$3,131 AUD
£1,728 GBP
View
B+
Retailer 12
-
$3,269 AUD
$2,291 USD
View
B
Retailer 13
-
$3,488 AUD
$2,444 USD
View
B
Retailer 14
-
$3,567 AUD
$2,500 USD
View
B
Retailer 15
-
$4,684 AUD
£2,585 GBP
View
Most Expensive
B
Brilliant Earth
12221907A · Nov 2
$5,180 AUD
$3,630 USD
View
15 more retailers have this diamond
Prices start from $1,026 AUDSave up to $4,154 AUD

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
$1,026 AUD