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Round|Lab Grown|IGI

1.21ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG788625368

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788625368

Diamond specifications and retailer prices

From $387 CAD
As of November 3, 2026
Save $1,947 CAD (83%) vs most expensive(unlock to see where)
18 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 LG788625368 or 788625368. Listed at 18 retailers as of November 3, 2026, with prices from $387 to $2,334, a $1,947 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 angle33.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788625368
Dimensions6.92 × 6.86 × 4.22 mm
L/W Ratio1.01
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
6.92 mm6.86 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788625368
Side View
Table 57.0%Crown 33.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.2%

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 3
Current: $2,334 CAD|Low: $387 CAD|High: $3,340 CAD|Avg: $1,144 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 14$387 CAD
Retailer 5$397 CAD
Retailer 7$442 CAD
Retailer 4$664 CAD
Retailer 17$731 CAD
Retailer 8$738 CAD
Retailer 3$760 CAD
Retailer 2$771 CAD
Retailer 9$792 CAD
Retailer 10$890 CAD
Retailer 13$1,332 CAD
Retailer 11$1,333 CAD
Retailer 12$1,400 CAD
Retailer 15$1,435 CAD
Retailer 16$1,743 CAD
Retailer 6$2,110 CAD
Brilliant Earth$2,334 CAD

36 data points across 17 retailers

18 retailers$387 CAD to $2,334 CAD

A
Cheapest Retailer
-
$387 CAD
A
Retailer 2
-
$397 CAD
View
Final sale: no returns
Retailer 3
-
$442 CAD
View
Price last confirmed 10 days ago
Retailer 4
-
$447 CAD
View
Price last confirmed 64 days ago
A
Retailer 5
-
$664 CAD
View
A
Retailer 6
-
$731 CAD
View
A
Retailer 7
-
$738 CAD
View
A
Retailer 8
-
$760 CAD
View
A
Retailer 9
-
$771 CAD
View
B+
Retailer 10
-
$792 CAD
View
B+
Retailer 11
-
$890 CAD
View
B+
Retailer 12
-
$1,332 CAD
View
B
Retailer 13
-
$1,333 CAD
View
B+
Retailer 14
-
$1,400 CAD
View
B+
Retailer 15
-
$1,435 CAD
View
B
Retailer 16
-
$1,743 CAD
View
B
Retailer 17
-
$2,110 CAD
View
Most Expensive
B
Brilliant Earth
21419099A · Nov 3
$2,334 CAD
$1,670 USD
View
17 more retailers have this diamond
Prices start from $387 CADSave up to $1,947 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
$387 CAD