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Cushion|Lab Grown|IGI

1.57ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1

Diamond specifications and retailer prices

From €308 EUR
£270 GBP
As of October 27, 2026
Save €366 EUR (54%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €674 EUR at Diamond Exchange Canada · As of October 27, 2026
View at Diamond Exchange Canada

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 2 retailers as of October 27, 2026, with prices from €308 to €674, a €366 spread on the same certified stone. Diamond Exchange Canada lists it at €674. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.57
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.56 × 5.88 × 0.00 mm
L/W Ratio1.46
Top View
8.56 mm5.88 mm1.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCuletDepth 66.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: €674 EUR|Low: €307 EUR|High: €708 EUR|Avg: €496 EUR|-4.9%
Diamond Exchange Canada
Retailer 2
October 27, 2026
Retailer 2€308 EUR
Diamond Exchange Canada€674 EUR

10 data points across 2 retailers

2 retailers€308 EUR to €674 EUR

A
Cheapest Retailer
-
€308 EUR
£270 GBP
Most Expensive
B
Diamond Exchange Canada
1768920957 · Oct 27
€674 EUR
CA$1,042 CAD
View
1 more retailer has this diamond
Prices start from €308 EURSave up to €366 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
€308 EUR