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Round|Natural|GIA

1.20ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6542820378

Certificate GIA 6542820378

Diamond specifications and retailer prices

From $3,007 CAD
As of November 4, 2026
Save $5,359 CAD (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,366 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542820378. Listed at 17 retailers as of November 4, 2026, with prices from $3,007 to $8,366, a $5,359 spread on the same certified stone. NZ Jewellers lists it at $8,366. 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542820378
Dimensions6.78 × 6.76 × 4.24 mm
L/W Ratio1.00
Top View
6.78 mm6.76 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542820378
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°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: $8,366 CAD|Low: $3,007 CAD|High: $8,366 CAD|Avg: $4,505 CAD
NZ Jewellers
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
November 6, 2026
Retailer 9$3,007 CAD
Retailer 3$3,142 CAD
Retailer 13$3,345 CAD
Retailer 4$3,626 CAD
Retailer 6$3,626 CAD
Retailer 15$3,793 CAD
Retailer 14$3,931 CAD
Retailer 5$4,183 CAD
Retailer 2$4,211 CAD
Retailer 12$4,677 CAD
Retailer 8$4,708 CAD
Retailer 7$4,761 CAD
Retailer 11$5,765 CAD
Retailer 10$6,691 CAD
NZ Jewellers$8,366 CAD

39 data points across 15 retailers

17 retailers$3,007 CAD to $8,366 CAD

A
Cheapest Retailer
-
$3,007 CAD
B+
Retailer 2
-
$3,142 CAD
View
B+
Retailer 3
-
$3,246 CAD
View
B+
Retailer 4
-
$3,345 CAD
View
Final sale: no returns
B+
Retailer 5
-
$3,626 CAD
View
Retailer 6
-
$3,626 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,793 CAD
View
B
Retailer 8
-
$3,931 CAD
View
B+
Retailer 9
-
$4,148 CAD
View
B+
Retailer 10
-
$4,148 CAD
View
B+
Retailer 11
-
$4,183 CAD
View
B+
Retailer 12
-
$4,211 CAD
View
B
Retailer 13
-
$4,288 CAD
View
B
Retailer 14
-
$4,708 CAD
View
B
Retailer 15
-
$5,765 CAD
View
B
Retailer 16
-
$6,691 CAD
View
Most Expensive
B
NZ Jewellers
3e49ae64-05b7-42ad-913f-fde23ded4821 · Nov 5
$8,366 CAD
$5,990 USD
View
16 more retailers have this diamond
Prices start from $3,007 CADSave up to $5,359 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
$3,007 CAD