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Cushion|Lab Grown|IGI

1.09ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG644488847

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG644488847

Diamond specifications and retailer prices

From $363 CAD
$260 USD
As of October 30, 2026
Save $2,316 CAD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,679 CAD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG644488847 or 644488847. Listed at 21 retailers as of October 27, 2026, with prices from $363 to $2,679, a $2,316 spread on the same certified stone. Queensmith lists it at $2,679. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644488847
Dimensions5.57 × 5.57 × 3.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
5.57 mm5.57 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644488847
Side View
Table 57.0%Crown 31.6°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 62.8%

Caratlytics Score

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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 30
Current: $673 CAD|Low: $363 CAD|High: $2,389 CAD|Avg: $1,036 CAD|-0.6%
Retailer 1
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Retailer 5
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Retailer 12
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Retailer 19
October 31, 2026
Retailer 7$363 CAD
Retailer 2$404 CAD
Retailer 18$447 CAD
Retailer 13$556 CAD
Retailer 1$673 CAD
Retailer 16$694 CAD
Retailer 3$732 CAD
Retailer 12$762 CAD
Retailer 5$909 CAD
Retailer 15$979 CAD
Retailer 17$985 CAD
Retailer 19$1,018 CAD
Retailer 8$1,090 CAD
Retailer 6$1,371 CAD
Retailer 9$1,401 CAD
Retailer 11$1,488 CAD
Retailer 14$1,627 CAD
Retailer 4$1,815 CAD
Retailer 10$2,389 CAD

39 data points across 19 retailers

21 retailers$363 CAD to $2,679 CAD

A
Cheapest Retailer
-
$363 CAD
$260 USD
Final sale: no returns
A
Retailer 2
-
$404 CAD
$289 USD
View
A
Retailer 3
-
$447 CAD
HK$2,500 HKD
View
A
Retailer 4
-
$556 CAD
$398 USD
View
A
Retailer 5
-
$673 CAD
€459 EUR
View
A
Retailer 6
-
$694 CAD
ZAR 8,023 ZAR
View
A
Retailer 7
-
$732 CAD
$524 USD
View
A
Retailer 8
-
$762 CAD
£430 GBP
View
A
Retailer 9
-
$833 CAD
$596 USD
View
A
Retailer 10
-
$909 CAD
$651 USD
View
A
Retailer 11
-
$979 CAD
A$1,078 AUD
View
A
Retailer 12
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$985 CAD
A$1,085 AUD
View
A
Retailer 13
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$1,018 CAD
$729 USD
View
A
Retailer 14
-
$1,090 CAD
SGD 1,054 SGD
View
B+
Retailer 15
-
$1,371 CAD
$982 USD
View
B+
Retailer 16
-
$1,401 CAD
$1,003 USD
View
Retailer 17
-
$1,488 CAD
A$1,639 AUD
View
Price last confirmed 26 days ago
B+
Retailer 18
-
$1,627 CAD
£917 GBP
View
B+
Retailer 19
-
$1,815 CAD
$1,299 USD
View
B
Retailer 20
-
$2,389 CAD
$1,710 USD
View
Most Expensive
B
Queensmith
LG644488847 · Oct 27
$2,679 CAD
£1,510 GBP
View
20 more retailers have this diamond
Prices start from $363 CADSave up to $2,316 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
1.09ct Cushion
$363 CAD