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Round|Lab Grown|IGI

1.21ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG794611843

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794611843

Diamond specifications and retailer prices

From $372 CAD
As of November 4, 2026
Save $1,962 CAD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,438 CAD at Brilliant Earth · As of September 28, 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 LG794611843 or 794611843. Listed at 18 retailers as of November 3, 2026, with a 528% 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794611843
Dimensions6.91 × 6.88 × 4.15 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
6.91 mm6.88 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794611843
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.2%

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: Nov 4
Current: $2,334 CAD|Low: $372 CAD|High: $3,340 CAD|Avg: $1,152 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 2$372 CAD
Retailer 17$387 CAD
Retailer 8$442 CAD
Retailer 7$664 CAD
Retailer 11$697 CAD
Retailer 5$731 CAD
Retailer 6$760 CAD
Retailer 12$771 CAD
Retailer 9$792 CAD
Retailer 13$890 CAD
Retailer 16$1,332 CAD
Retailer 14$1,333 CAD
Retailer 15$1,400 CAD
Retailer 3$1,435 CAD
Retailer 4$1,743 CAD
Retailer 10$1,894 CAD
Brilliant Earth$2,334 CAD

35 data points across 17 retailers

18 retailers$372 CAD to $2,334 CAD

A
Cheapest Retailer
-
$372 CAD
Final sale: no returns
A
Retailer 2
-
$387 CAD
View
Retailer 3
-
$442 CAD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$664 CAD
View
A
Retailer 5
-
$697 CAD
View
A
Retailer 6
-
$731 CAD
View
A
Retailer 7
-
$760 CAD
View
A
Retailer 8
-
$771 CAD
View
B+
Retailer 9
-
$792 CAD
View
B+
Retailer 10
-
$890 CAD
View
B+
Retailer 11
-
$1,332 CAD
View
B
Retailer 12
-
$1,333 CAD
View
B+
Retailer 13
-
$1,400 CAD
View
B+
Retailer 14
-
$1,435 CAD
View
B+
Retailer 15
-
$1,743 CAD
View
B
Retailer 16
-
$1,894 CAD
View
B
Retailer 17
-
$2,334 CAD
View
Most Expensive
Brilliant Earth
18985168A · Sep 28
$3,438 CAD
$2,460 USD
View
Price last confirmed 36 days ago
17 more retailers have this diamond
Prices start from $372 CADSave up to $1,962 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
$372 CAD