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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 €644 EUR
$719 USD
As of October 30, 2026
Save €2,606 EUR (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €3,249 EUR 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 €644 to €3,249, a €2,606 spread on the same certified stone. Brilliant Earth lists it at €3,249. 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

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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: Oct 30
Current: €3,249 EUR|Low: €611 EUR|High: €3,249 EUR|Avg: €1,331 EUR
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€644 EUR
Retailer 3€677 EUR
Retailer 13€704 EUR
Retailer 8€779 EUR
Retailer 4€866 EUR
Retailer 5€906 EUR
Retailer 7€1,025 EUR
Retailer 6€1,051 EUR
Retailer 10€1,163 EUR
Retailer 9€1,467 EUR
Retailer 12€2,051 EUR
Retailer 2€2,939 EUR
Brilliant Earth€3,249 EUR

41 data points across 13 retailers

17 retailers€644 EUR to €3,249 EUR

A
Cheapest Retailer
-
€644 EUR
$719 USD
Final sale: no returns
Retailer 2
-
€677 EUR
$756 USD
View
Price last confirmed 16 days ago
Retailer 3
-
€704 EUR
£619 GBP
View
Price last confirmed 18 days ago
A
Retailer 4
-
€779 EUR
$870 USD
View
A
Retailer 5
-
€866 EUR
$967 USD
View
A
Retailer 6
-
€906 EUR
$1,012 USD
View
A
Retailer 7
-
€1,025 EUR
View
A
Retailer 8
-
€1,051 EUR
£924 GBP
View
A
Retailer 9
-
€1,071 EUR
$1,196 USD
View
A
Retailer 10
-
€1,163 EUR
ZAR 20,995 ZAR
View
B+
Retailer 11
-
€1,467 EUR
$1,639 USD
View
B+
Retailer 12
-
€1,964 EUR
£1,728 GBP
View
B+
Retailer 13
-
€2,051 EUR
$2,291 USD
View
B
Retailer 14
-
€2,188 EUR
$2,444 USD
View
B
Retailer 15
-
€2,238 EUR
$2,500 USD
View
B
Retailer 16
-
€2,939 EUR
£2,585 GBP
View
Most Expensive
B
Brilliant Earth
12221907A · Oct 31
€3,249 EUR
$3,630 USD
View
16 more retailers have this diamond
Prices start from €644 EURSave up to €2,606 EUR

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
€644 EUR