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Cushion|Lab Grown|IGI

1.21ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG840632427

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840632427

Diamond specifications and retailer prices

From $603 CAD
$431 USD
As of October 28, 2026
Save $2,980 CAD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,583 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.21ct lab-grown cushion diamond

This 1.21ct 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 LG840632427 or 840632427. Listed at 15 retailers as of October 28, 2026, with prices from $603 to $3,583, a $2,980 spread on the same certified stone. Brilliant Earth lists it at $3,583. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840632427
Dimensions7.60 × 5.33 × 3.64 mm
L/W Ratio1.43
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
7.60 mm5.33 mm1.21 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840632427
Side View
Table 60.0%Crown 35.1°Girdle: STK-THKPavilion 35°Culet: NoneDepth 68.3%

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: $3,583 CAD|Low: $603 CAD|High: $3,583 CAD|Avg: $1,737 CAD
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$603 CAD
Retailer 9$710 CAD
Retailer 3$992 CAD
Retailer 11$1,008 CAD
Retailer 4$1,062 CAD
Retailer 8$1,076 CAD
Retailer 10$1,147 CAD
Retailer 13$1,166 CAD
Retailer 2$1,205 CAD
Retailer 5$2,124 CAD
Retailer 6$2,148 CAD
Retailer 15$2,198 CAD
Retailer 12$2,611 CAD
Retailer 7$3,097 CAD
Brilliant Earth$3,583 CAD

16 data points across 15 retailers

15 retailers$603 CAD to $3,583 CAD

A
Cheapest Retailer
-
$603 CAD
$431 USD
Final sale: no returns
A
Retailer 2
-
$710 CAD
£399 GBP
View
A
Retailer 3
-
$992 CAD
$709 USD
View
A
Retailer 4
-
$1,008 CAD
$720 USD
View
A
Retailer 5
-
$1,062 CAD
$759 USD
View
A
Retailer 6
-
$1,076 CAD
€732 EUR
View
A
Retailer 7
-
$1,147 CAD
ZAR 13,235 ZAR
View
A
Retailer 8
-
$1,166 CAD
$833 USD
View
A
Retailer 9
-
$1,205 CAD
£678 GBP
View
B+
Retailer 10
-
$2,124 CAD
SGD 2,051 SGD
View
B+
Retailer 11
-
$2,148 CAD
$1,535 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$2,198 CAD
$1,570 USD
View
B+
Retailer 13
-
$2,611 CAD
£1,469 GBP
View
B
Retailer 14
-
$3,097 CAD
$2,213 USD
View
Most Expensive
B
Brilliant Earth
21826974A · Oct 29
$3,583 CAD
$2,560 USD
View
14 more retailers have this diamond
Prices start from $603 CADSave up to $2,980 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
1.21ct Cushion
$603 CAD