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Round|Lab Grown|IGI

1.21ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG825659842

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825659842

Diamond specifications and retailer prices

From $393 CAD
As of November 4, 2026
Save $1,941 CAD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,334 CAD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825659842 or 825659842. Listed at 17 retailers as of November 3, 2026, with prices from $393 to $2,334, a $1,941 spread on the same certified stone. Brilliant Earth lists it at $2,334. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659842
Dimensions6.82 × 6.78 × 4.25 mm
L/W Ratio1.01
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
6.82 mm6.78 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659842
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: $2,334 CAD|Low: $393 CAD|High: $3,340 CAD|Avg: $1,151 CAD|-30.1%
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
Retailer 16
Retailer 17
November 4, 2026
Retailer 16$393 CAD
Retailer 17$407 CAD
Retailer 8$442 CAD
Retailer 12$657 CAD
Retailer 2$729 CAD
Retailer 4$731 CAD
Retailer 5$760 CAD
Retailer 9$792 CAD
Retailer 11$816 CAD
Retailer 13$897 CAD
Retailer 14$1,336 CAD
Retailer 7$1,421 CAD
Retailer 15$1,469 CAD
Retailer 6$1,547 CAD
Retailer 3$1,743 CAD
Retailer 10$1,894 CAD
Brilliant Earth$2,334 CAD

38 data points across 17 retailers

17 retailers$393 CAD to $2,334 CAD

A
Cheapest Retailer
-
$393 CAD
Final sale: no returns
A
Retailer 2
-
$407 CAD
View
Retailer 3
-
$442 CAD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$657 CAD
View
A
Retailer 5
-
$729 CAD
View
A
Retailer 6
-
$731 CAD
View
A
Retailer 7
-
$760 CAD
View
B+
Retailer 8
-
$792 CAD
View
B+
Retailer 9
-
$816 CAD
View
B+
Retailer 10
-
$897 CAD
View
B
Retailer 11
-
$1,336 CAD
View
B+
Retailer 12
-
$1,421 CAD
View
B+
Retailer 13
-
$1,469 CAD
View
B+
Retailer 14
-
$1,547 CAD
View
B
Retailer 15
-
$1,743 CAD
View
B
Retailer 16
-
$1,894 CAD
View
Most Expensive
B
Brilliant Earth
21418780A · Nov 3
$2,334 CAD
$1,670 USD
View
16 more retailers have this diamond
Prices start from $393 CADSave up to $1,941 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 Round
$393 CAD