Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2546459773

Certificate GIA 2546459773

Diamond specifications and retailer prices

From $3,890 CAD
As of November 4, 2026
Save $2,063 CAD (35%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,824 CAD at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2546459773. Listed at 19 retailers as of November 4, 2026, with a 53% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2546459773
Dimensions6.75 × 6.79 × 4.21 mm
L/W Ratio1.01
Top View
6.75 mm6.79 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2546459773
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,880 CAD|Low: $3,884 CAD|High: $8,571 CAD|Avg: $5,570 CAD|+14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,936 CAD
Retailer 3$4,025 CAD
Retailer 8$4,589 CAD
Retailer 4$5,424 CAD
Retailer 2$5,536 CAD
Retailer 9$5,737 CAD
Retailer 1$5,880 CAD
Retailer 5$6,106 CAD
Retailer 6$8,571 CAD

40 data points across 9 retailers

19 retailers$3,890 CAD to $5,952 CAD

B+
Cheapest Retailer
-
$3,890 CAD
B+
Retailer 2
-
$3,936 CAD
View
B+
Retailer 3
-
$3,991 CAD
View
B
Retailer 4
-
$4,025 CAD
View
Final sale: no returns
B+
Retailer 5
-
$4,223 CAD
View
Retailer 6
-
$4,589 CAD
View
Price last confirmed 36 days ago
B
Retailer 7
-
$4,691 CAD
View
Retailer 8
-
$4,765 CAD
View
Price last confirmed 38 days ago
B
Retailer 9
-
$4,987 CAD
View
B
Retailer 10
-
$4,987 CAD
View
Retailer 11
-
$5,295 CAD
View
Price last confirmed 38 days ago
Retailer 12
-
$5,424 CAD
View
Price last confirmed 35 days ago
B
Retailer 13
-
$5,536 CAD
View
Retailer 14
-
$5,737 CAD
View
Price last confirmed 36 days ago
B
Retailer 15
-
$5,880 CAD
View
B
Retailer 16
-
$5,952 CAD
View
Retailer 17
-
$6,106 CAD
View
Price last confirmed 37 days ago
Retailer 18
-
$8,571 CAD
View
Price last confirmed 36 days ago
Most Expensive
NZ Jewellers
bcf9dc78-1694-4342-af5e-fb6a715fbc54 · Sep 28
$8,824 CAD
$6,318 USD
View
Price last confirmed 39 days ago
18 more retailers have this diamond
Prices start from $3,890 CADSave up to $2,063 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.

B+
1.20ct Round
$3,890 CAD