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Cushion|Lab Grown|IGI

1.00ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG818662844

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

Certificate IGI LG818662844

Diamond specifications and retailer prices

From $490 CAD
$350 USD
As of October 28, 2026
Save $2,155 CAD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,645 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818662844 or 818662844. Listed at 15 retailers as of October 28, 2026, with prices from $490 to $2,645, a $2,155 spread on the same certified stone. Brilliant Earth lists it at $2,645. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818662844
Dimensions5.98 × 5.81 × 3.76 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
5.98 mm5.81 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818662844
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 64.7%

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 28
Current: $2,645 CAD|Low: $490 CAD|High: $2,841 CAD|Avg: $1,276 CAD|-6.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 14$490 CAD
Retailer 10$577 CAD
Retailer 7$607 CAD
Retailer 13$827 CAD
Retailer 5$847 CAD
Retailer 15$883 CAD
Retailer 8$889 CAD
Retailer 11$933 CAD
Retailer 2$964 CAD
Retailer 4$980 CAD
Retailer 6$1,582 CAD
Retailer 3$1,809 CAD
Retailer 12$2,174 CAD
Retailer 9$2,186 CAD
Brilliant Earth$2,645 CAD

36 data points across 15 retailers

15 retailers$490 CAD to $2,645 CAD

A
Cheapest Retailer
-
$490 CAD
$350 USD
Final sale: no returns
A
Retailer 2
-
$577 CAD
£325 GBP
View
A
Retailer 3
-
$607 CAD
$434 USD
View
Price last confirmed 17 days ago
A
Retailer 4
-
$827 CAD
$591 USD
View
A
Retailer 5
-
$847 CAD
$605 USD
View
A
Retailer 6
-
$883 CAD
$631 USD
View
A
Retailer 7
-
$889 CAD
€605 EUR
View
A
Retailer 8
-
$933 CAD
ZAR 10,764 ZAR
View
A
Retailer 9
-
$964 CAD
£542 GBP
View
A
Retailer 10
-
$980 CAD
$700 USD
View
B+
Retailer 11
-
$1,582 CAD
$1,130 USD
View
B+
Retailer 12
-
$1,809 CAD
$1,293 USD
View
B
Retailer 13
-
$2,174 CAD
$1,553 USD
View
B
Retailer 14
-
$2,186 CAD
£1,230 GBP
View
Most Expensive
B
Brilliant Earth
21242302A · Oct 29
$2,645 CAD
$1,890 USD
View
14 more retailers have this diamond
Prices start from $490 CADSave up to $2,155 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
1.00ct Cushion
$490 CAD