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Cushion|Lab Grown|IGI

1.57ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG526288477

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG526288477

Diamond specifications and retailer prices

From $300 CAD
$214 USD
As of October 28, 2026
Save $1,335 CAD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,635 CAD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

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 LG526288477 or 526288477. Listed at 14 retailers as of October 28, 2026, with prices from $300 to $1,635, a $1,335 spread on the same certified stone. Reve Diamonds lists it at $1,635. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526288477
Dimensions6.82 × 6.39 × 4.03 mm
L/W Ratio1.07
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
6.82 mm6.39 mm1.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526288477
Side View
Table 67.0%Crown 36.5°Girdle: STK-THKPavilion 31.1°Culet: NoneDepth 63.1%

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 28
Current: $605 CAD|Low: $300 CAD|High: $1,610 CAD|Avg: $813 CAD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 2$300 CAD
Retailer 10$333 CAD
Retailer 5$448 CAD
Retailer 4$551 CAD
Retailer 1$605 CAD
Retailer 3$667 CAD
Retailer 11$802 CAD
Retailer 7$844 CAD
Retailer 8$1,204 CAD
Retailer 6$1,566 CAD
Retailer 9$1,568 CAD

42 data points across 11 retailers

14 retailers$300 CAD to $1,635 CAD

A
Cheapest Retailer
-
$300 CAD
$214 USD
Final sale: no returns
A
Retailer 2
-
$333 CAD
$238 USD
View
B+
Retailer 3
-
$448 CAD
$320 USD
View
A
Retailer 4
-
$551 CAD
€375 EUR
View
A
Retailer 5
-
$605 CAD
£340 GBP
View
A
Retailer 6
-
$667 CAD
$477 USD
View
A
Retailer 7
-
$673 CAD
$481 USD
View
B+
Retailer 8
-
$802 CAD
$573 USD
View
B+
Retailer 9
-
$844 CAD
$603 USD
View
B+
Retailer 10
-
$1,146 CAD
$819 USD
View
B+
Retailer 11
-
$1,204 CAD
$860 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$1,566 CAD
£881 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
$1,568 CAD
$1,120 USD
View
Most Expensive
B
Reve Diamonds
8AED4C9E6 · Oct 28
$1,635 CAD
$1,168 USD
View
13 more retailers have this diamond
Prices start from $300 CADSave up to $1,335 CAD

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
$300 CAD