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Cushion|Lab Grown|IGI

1.05ct E FL Cushion Lab Grown Diamond

GD • E/FL • IGI LG818657598

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

Certificate IGI LG818657598

Diamond specifications and retailer prices

From $491 CAD
$351 USD
As of October 28, 2026
Save $2,252 CAD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,743 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818657598 or 818657598. Listed at 14 retailers as of October 28, 2026, with prices from $491 to $2,743, a $2,252 spread on the same certified stone. Brilliant Earth lists it at $2,743. 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

1.05
Carat
E
Color
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657598
Dimensions6.15 × 5.99 × 3.89 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
6.15 mm5.99 mm1.05 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657598
Side View
Table 61.0%Crown 34.7°Girdle: THN-STKPavilion 42.2°Culet: NoneDepth 64.9%

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: $2,743 CAD|Low: $393 CAD|High: $2,995 CAD|Avg: $1,380 CAD|-8.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 11$491 CAD
Retailer 6$602 CAD
Retailer 12$886 CAD
Retailer 7$892 CAD
Retailer 10$894 CAD
Retailer 4$910 CAD
Retailer 8$936 CAD
Retailer 2$968 CAD
Retailer 14$985 CAD
Retailer 13$1,816 CAD
Retailer 5$1,875 CAD
Retailer 9$2,180 CAD
Retailer 3$2,352 CAD
Brilliant Earth$2,743 CAD

34 data points across 14 retailers

14 retailers$491 CAD to $2,743 CAD

A
Cheapest Retailer
-
$491 CAD
$351 USD
Final sale: no returns
A
Retailer 2
-
$602 CAD
$430 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$886 CAD
$633 USD
View
A
Retailer 4
-
$892 CAD
€607 EUR
View
A
Retailer 5
-
$894 CAD
$639 USD
View
B+
Retailer 6
-
$910 CAD
$650 USD
View
A
Retailer 7
-
$936 CAD
ZAR 10,806 ZAR
View
A
Retailer 8
-
$968 CAD
£545 GBP
View
A
Retailer 9
-
$985 CAD
$704 USD
View
B
Retailer 10
-
$1,816 CAD
$1,297 USD
View
B
Retailer 11
-
$1,875 CAD
$1,340 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$2,180 CAD
$1,557 USD
View
B
Retailer 13
-
$2,352 CAD
£1,323 GBP
View
Most Expensive
B
Brilliant Earth
21241761A · Oct 29
$2,743 CAD
$1,960 USD
View
13 more retailers have this diamond
Prices start from $491 CADSave up to $2,252 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
1.05ct Cushion
$491 CAD