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Cushion|Lab Grown|IGI

1.58ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG532249567

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG532249567

Diamond specifications and retailer prices

From $302 CAD
$216 USD
As of October 28, 2026
Save $1,489 CAD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,791 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.58ct lab-grown cushion diamond

This 1.58ct 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 LG532249567 or 532249567. Listed at 13 retailers as of October 28, 2026, with prices from $302 to $1,791, a $1,489 spread on the same certified stone. Brilliant Earth lists it at $1,791. 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

1.58
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532249567
Dimensions6.44 × 6.43 × 4.37 mm
L/W Ratio1.00
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
6.44 mm6.43 mm1.58 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532249567
Side View
Table 62.0%Crown 37.5°Girdle: MED-THKPavilion 33.3°Culet: NoneDepth 68.0%

Caratlytics Score

How it works →
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: $1,791 CAD|Low: $302 CAD|High: $1,917 CAD|Avg: $810 CAD|-6.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9$302 CAD
Retailer 7$335 CAD
Retailer 4$451 CAD
Retailer 3$553 CAD
Retailer 2$609 CAD
Retailer 10$671 CAD
Retailer 8$805 CAD
Retailer 6$850 CAD
Retailer 5$1,575 CAD
Brilliant Earth$1,791 CAD

44 data points across 10 retailers

13 retailers$302 CAD to $1,791 CAD

A
Cheapest Retailer
-
$302 CAD
$216 USD
Final sale: no returns
A
Retailer 2
-
$335 CAD
$239 USD
View
B+
Retailer 3
-
$451 CAD
$322 USD
View
A
Retailer 4
-
$553 CAD
€376 EUR
View
A
Retailer 5
-
$609 CAD
£342 GBP
View
A
Retailer 6
-
$671 CAD
$480 USD
View
A
Retailer 7
-
$682 CAD
$487 USD
View
B+
Retailer 8
-
$805 CAD
$575 USD
View
B+
Retailer 9
-
$850 CAD
$607 USD
View
B+
Retailer 10
-
$1,152 CAD
$823 USD
View
B
Retailer 11
-
$1,575 CAD
£886 GBP
View
Price last confirmed 8 days ago
B
Retailer 12
-
$1,639 CAD
$1,171 USD
View
Most Expensive
B
Brilliant Earth
10788815A · Oct 28
$1,791 CAD
$1,280 USD
View
12 more retailers have this diamond
Prices start from $302 CADSave up to $1,489 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
1.58ct Cushion
$302 CAD