Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 5503489142

Certificate GIA 5503489142

Diamond specifications and retailer prices

From $4,535 CAD
As of November 1, 2026
Save $6,389 CAD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,924 CAD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5503489142. Listed at 16 retailers as of November 1, 2026, with prices from $4,535 to $10,924, a $6,389 spread on the same certified stone. Diamond Quarter lists it at $10,924. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5503489142
Dimensions6.81 × 6.78 × 4.22 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.81 mm6.78 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5503489142
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

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 1
Current: $5,730 CAD|Low: $3,929 CAD|High: $9,822 CAD|Avg: $6,399 CAD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 6$4,600 CAD
Retailer 7$4,715 CAD
Retailer 5$4,730 CAD
Retailer 1$5,730 CAD
Retailer 2$5,964 CAD
Retailer 3$6,193 CAD
Retailer 9$6,380 CAD
Retailer 10$6,708 CAD
Retailer 4$9,428 CAD
Retailer 8$9,822 CAD

34 data points across 10 retailers

16 retailers$4,535 CAD to $10,924 CAD

A
Cheapest Retailer
-
$4,535 CAD
A
Retailer 2
-
$4,600 CAD
View
B+
Retailer 3
-
$4,730 CAD
View
Retailer 4
-
$5,107 CAD
View
Price last confirmed 21 days ago
Retailer 5
-
$5,107 CAD
View
Price last confirmed 17 days ago
Retailer 6
-
$5,304 CAD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$5,730 CAD
View
B+
Retailer 8
-
$5,781 CAD
View
B+
Retailer 9
-
$5,781 CAD
View
Retailer 10
-
$5,894 CAD
View
Price last confirmed 19 days ago
B+
Retailer 11
-
$5,964 CAD
View
B+
Retailer 12
-
$6,193 CAD
View
Retailer 13
-
$6,380 CAD
View
Price last confirmed 22 days ago
B
Retailer 14
-
$9,428 CAD
View
Retailer 15
-
$9,822 CAD
View
Price last confirmed 17 days ago
Most Expensive
B
Diamond Quarter
1.21SI2F55428241N · Nov 5
$10,924 CAD
£6,115 GBP
View
15 more retailers have this diamond
Prices start from $4,535 CADSave up to $6,389 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
$4,535 CAD