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Marquise|Natural|GIA

1.21ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2245057364

Certificate GIA 2245057364

Diamond specifications and retailer prices

From $5,116 CAD
As of November 4, 2026
Save $4,054 CAD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,170 CAD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245057364. Listed at 13 retailers as of November 4, 2026, with prices from $5,116 to $9,170, a $4,054 spread on the same certified stone. Helzberg Diamonds lists it at $9,170. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.96°
Pavilion angle37.63°
OriginNatural
Grading LabGIA
CertificateGIA 2245057364
Dimensions10.52 × 5.56 × 3.39 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.52 mm5.56 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245057364
Side View
Table 58.0%Crown 39.96°Girdle: STK-THKPavilion 37.63°Culet: NoneDepth 61.0%

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: $9,170 CAD|Low: $5,116 CAD|High: $9,841 CAD|Avg: $6,489 CAD|-6.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 10$5,116 CAD
Retailer 4$5,245 CAD
Retailer 8$5,348 CAD
Retailer 7$5,467 CAD
Retailer 3$5,583 CAD
Retailer 5$5,626 CAD
Retailer 6$5,868 CAD
Retailer 9$6,330 CAD
Retailer 12$6,484 CAD
Retailer 13$6,535 CAD
Retailer 2$6,576 CAD
Retailer 11$9,133 CAD
Helzberg Diamonds$9,170 CAD

39 data points across 13 retailers

13 retailers$5,116 CAD to $9,170 CAD

A
Cheapest Retailer
-
$5,116 CAD
A
Retailer 2
-
$5,245 CAD
View
A
Retailer 3
-
$5,348 CAD
View
B+
Retailer 4
-
$5,467 CAD
View
B+
Retailer 5
-
$5,583 CAD
View
Retailer 6
-
$5,626 CAD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$5,868 CAD
View
B+
Retailer 8
-
$6,330 CAD
View
B+
Retailer 9
-
$6,484 CAD
View
B+
Retailer 10
-
$6,535 CAD
View
B+
Retailer 11
-
$6,576 CAD
View
B
Retailer 12
-
$9,133 CAD
View
Most Expensive
B
Helzberg Diamonds
XZRIIKLGLNJMK · Nov 6
$9,170 CAD
$6,519 USD
View
12 more retailers have this diamond
Prices start from $5,116 CADSave up to $4,054 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 Marquise
$5,116 CAD