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Cushion|Lab Grown|IGI

1.09ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846663309

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846663309

Diamond specifications and retailer prices

From $620 CAD
£349 GBP
As of October 30, 2026
Save $2,677 CAD (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,297 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663309 or 846663309. Listed at 8 retailers as of October 30, 2026, with prices from $620 to $3,297, a $2,677 spread on the same certified stone. Brilliant Earth lists it at $3,297. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663309
Dimensions7.98 × 5.20 × 3.48 mm
L/W Ratio1.53
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
7.98 mm5.20 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663309
Side View
Table 63.0%Crown 33.7°Girdle: STK-THKPavilion 35.3°Culet: NoneDepth 66.9%

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: $3,297 CAD|Low: $620 CAD|High: $3,967 CAD|Avg: $1,584 CAD|-16.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3$620 CAD
Retailer 4$873 CAD
Retailer 2$965 CAD
Retailer 6$1,006 CAD
Retailer 7$1,207 CAD
Retailer 5$2,610 CAD
Retailer 8$2,809 CAD
Brilliant Earth$3,297 CAD

5 data points across 8 retailers

8 retailers$620 CAD to $3,297 CAD

A
Cheapest Retailer
-
$620 CAD
£349 GBP
A
Retailer 2
-
$873 CAD
$625 USD
View
A
Retailer 3
-
$965 CAD
$691 USD
View
A
Retailer 4
-
$1,006 CAD
$720 USD
View
A
Retailer 5
-
$1,207 CAD
€823 EUR
View
B
Retailer 6
-
$2,610 CAD
£1,471 GBP
View
B
Retailer 7
-
$2,809 CAD
$2,011 USD
View
Most Expensive
B
Brilliant Earth
22315344A · Oct 30
$3,297 CAD
$2,360 USD
View
7 more retailers have this diamond
Prices start from $620 CADSave up to $2,677 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
$620 CAD