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Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1439457358

Certificate GIA 1439457358

Diamond specifications and retailer prices

From $3,529 CAD
As of November 4, 2026
Save $7,143 CAD (67%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,672 CAD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1439457358. Listed at 21 retailers as of November 4, 2026, with prices from $3,529 to $10,672, a $7,143 spread on the same certified stone. Diamond Quarter lists it at $10,672. 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

1.20
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1439457358
Dimensions6.79 × 6.75 × 4.25 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
6.79 mm6.75 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1439457358
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,018 CAD|Low: $3,207 CAD|High: $7,786 CAD|Avg: $4,619 CAD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$3,610 CAD
Retailer 9$3,612 CAD
Retailer 7$3,848 CAD
Retailer 3$4,167 CAD
Retailer 10$4,257 CAD
Retailer 8$4,328 CAD
Retailer 11$4,525 CAD
Retailer 4$4,733 CAD
Retailer 2$4,808 CAD
Retailer 1$5,018 CAD
Retailer 5$7,673 CAD

41 data points across 11 retailers

21 retailers$3,529 CAD to $10,672 CAD

A
Cheapest Retailer
-
$3,529 CAD
A
Retailer 2
-
$3,610 CAD
View
A
Retailer 3
-
$3,612 CAD
View
A
Retailer 4
-
$3,624 CAD
View
A
Retailer 5
-
$3,848 CAD
View
Final sale: no returns
A
Retailer 6
-
$3,848 CAD
View
Retailer 7
-
$4,167 CAD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$4,167 CAD
View
B+
Retailer 9
-
$4,257 CAD
View
B+
Retailer 10
-
$4,328 CAD
View
B+
Retailer 11
-
$4,525 CAD
View
B+
Retailer 12
-
$4,733 CAD
View
B+
Retailer 13
-
$4,734 CAD
View
B+
Retailer 14
-
$4,734 CAD
View
B+
Retailer 15
-
$4,808 CAD
View
B+
Retailer 16
-
$4,902 CAD
View
B+
Retailer 17
-
$5,018 CAD
View
Retailer 18
-
$5,335 CAD
View
Price last confirmed 14 days ago
B
Retailer 19
-
$7,673 CAD
View
B
Retailer 20
-
$8,015 CAD
View
Most Expensive
B
Diamond Quarter
1.2SI2H14589FD0N · Nov 5
$10,672 CAD
£6,017 GBP
View
20 more retailers have this diamond
Prices start from $3,529 CADSave up to $7,143 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
1.20ct Round
$3,529 CAD