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Cushion|Lab Grown|IGI

1.55ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG825633211

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG825633211

Diamond specifications and retailer prices

From $631 CAD
$452 USD
As of October 30, 2026
Save $3,294 CAD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,925 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825633211 or 825633211. Listed at 12 retailers as of October 30, 2026, with prices from $631 to $3,925, a $3,294 spread on the same certified stone. Brilliant Earth lists it at $3,925. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825633211
Dimensions6.73 × 6.55 × 4.17 mm
L/W Ratio1.03
Girdle conditionFaceted
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
6.73 mm6.55 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825633211
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 34°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,925 CAD|Low: $631 CAD|High: $4,400 CAD|Avg: $2,098 CAD|-9.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6$631 CAD
Retailer 8$724 CAD
Retailer 5$1,111 CAD
Retailer 9$1,152 CAD
Retailer 10$1,231 CAD
Retailer 3$1,538 CAD
Retailer 4$2,303 CAD
Retailer 7$2,580 CAD
Retailer 2$2,625 CAD
Retailer 11$2,755 CAD
Retailer 12$3,290 CAD
Brilliant Earth$3,925 CAD

40 data points across 12 retailers

12 retailers$631 CAD to $3,925 CAD

A
Cheapest Retailer
-
$631 CAD
$452 USD
Final sale: no returns
A
Retailer 2
-
$724 CAD
£408 GBP
View
A
Retailer 3
-
$1,111 CAD
$795 USD
View
A
Retailer 4
-
$1,152 CAD
£650 GBP
View
A
Retailer 5
-
$1,231 CAD
€839 EUR
View
A
Retailer 6
-
$1,538 CAD
$1,101 USD
View
B+
Retailer 7
-
$2,303 CAD
$1,649 USD
View
B+
Retailer 8
-
$2,580 CAD
$1,847 USD
View
B+
Retailer 9
-
$2,625 CAD
$1,879 USD
View
B+
Retailer 10
-
$2,755 CAD
£1,553 GBP
View
Retailer 11
-
$3,290 CAD
$2,355 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21322734A · Oct 30
$3,925 CAD
$2,810 USD
View
11 more retailers have this diamond
Prices start from $631 CADSave up to $3,294 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
$631 CAD