CaratHunter
Plans
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 $719 USD
As of October 30, 2026
Save $2,911 USD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,630 USD 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 17 retailers as of October 30, 2026, with prices from $719 to $3,630, a $2,911 spread on the same certified stone. Brilliant Earth lists it at $3,630. 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
Color
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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,630 USD|Low: $683 USD|High: $3,630 USD|Avg: $1,487 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 11$719 USD
Retailer 3$756 USD
Retailer 13$787 USD
Retailer 8$870 USD
Retailer 4$967 USD
Retailer 5$1,012 USD
Retailer 7$1,146 USD
Retailer 6$1,174 USD
Retailer 10$1,300 USD
Retailer 9$1,639 USD
Retailer 12$2,291 USD
Retailer 2$3,283 USD
Brilliant Earth$3,630 USD

41 data points across 13 retailers

17 retailers$719 USD to $3,630 USD

A
Cheapest Retailer
-
$719 USD
Final sale: no returns
Retailer 2
-
$756 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$787 USD
£619 GBP
View
Price last confirmed 18 days ago
A
Retailer 4
-
$870 USD
View
A
Retailer 5
-
$967 USD
View
A
Retailer 6
-
$1,012 USD
View
A
Retailer 7
-
$1,146 USD
€1,091 EUR
View
A
Retailer 8
-
$1,174 USD
£924 GBP
View
A
Retailer 9
-
$1,196 USD
View
A
Retailer 10
-
$1,300 USD
ZAR 20,995 ZAR
View
B+
Retailer 11
-
$1,639 USD
View
B+
Retailer 12
-
$2,195 USD
£1,728 GBP
View
B+
Retailer 13
-
$2,291 USD
View
B
Retailer 14
-
$2,444 USD
View
B
Retailer 15
-
$2,500 USD
View
B
Retailer 16
-
$3,283 USD
£2,585 GBP
View
Most Expensive
B
Brilliant Earth
12221907A · Oct 31
$3,630 USD
View
16 more retailers have this diamond
Prices start from $719 USDSave up to $2,911 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
$719 USD