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Cushion|Lab Grown|IGI

1.55ct E SI1 Cushion Lab Grown Diamond

GD • E/SI1 • IGI LG821628425

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821628425

Diamond specifications and retailer prices

From $535 CAD
€364 EUR
As of October 29, 2026
Save $916 CAD (63%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,450 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown cushion diamond

This 1.55ct 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 standard cut grade and certified by IGI LG821628425 or 821628425. Listed at 5 retailers as of October 29, 2026, with prices from $535 to $1,450, a $916 spread on the same certified stone. MOH London lists it at $1,450. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821628425
Dimensions8.21 × 5.98 × 3.99 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.21 mm5.98 mm1.55 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821628425
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 66.7%

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 29
Current: $1,450 CAD|Low: $397 CAD|High: $1,538 CAD|Avg: $955 CAD|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3$397 CAD
Retailer 2$535 CAD
Retailer 4$780 CAD
Retailer 5$1,302 CAD
MOH London$1,450 CAD

22 data points across 5 retailers

5 retailers$535 CAD to $1,450 CAD

A
Retailer 1
-
$397 CAD
£223 GBP
Price last confirmed 12 days ago
A
Retailer 2
-
$535 CAD
€364 EUR
View
B+
Retailer 3
-
$780 CAD
$557 USD
View
B
Retailer 4
-
$1,302 CAD
SGD 1,257 SGD
View
Price last confirmed 16 days ago
Most Expensive
B
MOH London
LG821628425 · Oct 29
$1,450 CAD
£816 GBP
View
4 more retailers have this diamond
Prices start from $535 CADSave up to $916 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
1.55ct Cushion
$535 CAD