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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5556715240

Certificate GIA 5556715240

Diamond specifications and retailer prices

From $2,627 CAD
As of November 6, 2026
Save $3,486 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,296 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 5556715240. Listed at 20 retailers as of November 2, 2026, with a 133% 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
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5556715240
Dimensions6.85 × 6.88 × 4.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.85 mm6.88 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556715240
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.6%

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 6
Current: $2,729 CAD|Low: $2,627 CAD|High: $6,179 CAD|Avg: $3,766 CAD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$2,627 CAD
Retailer 1$2,729 CAD
Retailer 8$3,059 CAD
Retailer 3$3,221 CAD
Retailer 12$3,247 CAD
Retailer 2$3,276 CAD
Retailer 5$3,647 CAD
Retailer 6$3,670 CAD
Retailer 4$3,905 CAD
Retailer 7$4,260 CAD
Retailer 9$4,343 CAD
Retailer 10$6,113 CAD

32 data points across 12 retailers

20 retailers$2,627 CAD to $6,113 CAD

A
Cheapest Retailer
-
$2,627 CAD
A
Retailer 2
-
$2,729 CAD
View
A
Retailer 3
-
$3,059 CAD
View
B+
Retailer 4
-
$3,221 CAD
View
Final sale: no returns
B+
Retailer 5
-
$3,247 CAD
View
B+
Retailer 6
-
$3,247 CAD
View
B+
Retailer 7
-
$3,276 CAD
View
Retailer 8
-
$3,490 CAD
View
Price last confirmed 39 days ago
B+
Retailer 9
-
$3,589 CAD
View
B+
Retailer 10
-
$3,647 CAD
View
Retailer 11
-
$3,651 CAD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$3,670 CAD
View
B+
Retailer 13
-
$3,686 CAD
View
Retailer 14
-
$3,905 CAD
View
Price last confirmed 31 days ago
Retailer 15
-
$4,026 CAD
View
Price last confirmed 38 days ago
B+
Retailer 16
-
$4,260 CAD
View
B+
Retailer 17
-
$4,343 CAD
View
B
Retailer 18
-
$6,113 CAD
View
Retailer 19
-
$7,296 CAD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
6fdbfa8c-9bca-494e-ab38-9a8eada9774d · Sep 28
$7,296 CAD
$5,224 USD
View
Price last confirmed 39 days ago
19 more retailers have this diamond
Prices start from $2,627 CADSave up to $3,486 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
$2,627 CAD