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Cushion|Lab Grown|IGI

1.21ct F IF Cushion Lab Grown Diamond

EX • F/IF • IGI LG655426099

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG655426099

Diamond specifications and retailer prices

From $312 CAD
As of November 4, 2026
Save $1,750 CAD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,044 CAD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG655426099 or 655426099. Listed at 21 retailers as of November 4, 2026, with a 561% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655426099
Dimensions7.13 × 5.77 × 3.77 mm
L/W Ratio1.24
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
7.13 mm5.77 mm1.21 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655426099
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 36.6°Culet: NoneDepth 65.3%

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: Nov 4
Current: $630 CAD|Low: $312 CAD|High: $2,898 CAD|Avg: $1,047 CAD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 9$312 CAD
Retailer 3$347 CAD
Retailer 19$392 CAD
Retailer 5$477 CAD
Retailer 15$587 CAD
Retailer 14$599 CAD
Retailer 1$630 CAD
Retailer 4$688 CAD
Retailer 13$846 CAD
Retailer 2$860 CAD
Retailer 7$1,102 CAD
Retailer 10$1,134 CAD
Retailer 11$1,179 CAD
Retailer 8$1,190 CAD
Retailer 17$1,444 CAD
Retailer 12$1,619 CAD
Retailer 6$1,667 CAD
Retailer 18$1,812 CAD
Retailer 16$2,062 CAD

41 data points across 19 retailers

21 retailers$312 CAD to $2,062 CAD

A
Cheapest Retailer
-
$312 CAD
Final sale: no returns
Retailer 2
-
$347 CAD
View
Price last confirmed 11 days ago
A
Retailer 3
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$392 CAD
View
B+
Retailer 4
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$477 CAD
View
A
Retailer 5
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$587 CAD
View
A
Retailer 6
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$599 CAD
View
A
Retailer 7
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$630 CAD
View
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Retailer 8
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$688 CAD
View
A
Retailer 9
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$846 CAD
View
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Retailer 10
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$860 CAD
View
A
Retailer 11
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$1,102 CAD
View
A
Retailer 12
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$1,134 CAD
View
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Retailer 13
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$1,179 CAD
View
A
Retailer 14
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$1,190 CAD
View
Retailer 15
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$1,444 CAD
View
Price last confirmed 7 days ago
B+
Retailer 16
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$1,619 CAD
View
B+
Retailer 17
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$1,667 CAD
View
B+
Retailer 18
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$1,812 CAD
View
Retailer 19
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$1,846 CAD
View
Price last confirmed 42 days ago
B+
Retailer 20
-
$2,062 CAD
View
Most Expensive
Queensmith
LG655426099 · Oct 27
$3,044 CAD
£1,720 GBP
View
Price last confirmed 8 days ago
20 more retailers have this diamond
Prices start from $312 CADSave up to $1,750 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
$312 CAD