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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1553140319

Certificate GIA 1553140319

Diamond specifications and retailer prices

From $2,574 CAD
As of November 4, 2026
Save $3,352 CAD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,163 CAD at NZ Jewellers · As of October 3, 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 1553140319. Listed at 20 retailers as of November 4, 2026, with a 130% 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 angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1553140319
Dimensions6.81 × 6.87 × 4.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
6.81 mm6.87 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553140319
Side View
Table 62.0%Crown 33°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 60.2%

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: $3,579 CAD|Low: $2,574 CAD|High: $6,074 CAD|Avg: $3,766 CAD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 12$2,574 CAD
Retailer 8$2,690 CAD
Retailer 10$3,001 CAD
Retailer 2$3,128 CAD
Retailer 13$3,194 CAD
Retailer 4$3,492 CAD
Retailer 6$3,567 CAD
Retailer 1$3,579 CAD
Retailer 3$3,586 CAD
Retailer 9$4,138 CAD
Retailer 7$4,209 CAD
Retailer 5$4,218 CAD
Retailer 11$5,926 CAD

32 data points across 13 retailers

20 retailers$2,574 CAD to $5,926 CAD

A
Cheapest Retailer
-
$2,574 CAD
A
Retailer 2
-
$2,690 CAD
View
A
Retailer 3
-
$3,001 CAD
View
B+
Retailer 4
-
$3,128 CAD
View
Final sale: no returns
B+
Retailer 5
-
$3,194 CAD
View
B+
Retailer 6
-
$3,214 CAD
View
B+
Retailer 7
-
$3,219 CAD
View
Retailer 8
-
$3,426 CAD
View
Price last confirmed 39 days ago
B+
Retailer 9
-
$3,492 CAD
View
B+
Retailer 10
-
$3,567 CAD
View
B+
Retailer 11
-
$3,579 CAD
View
Retailer 12
-
$3,584 CAD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$3,586 CAD
View
Retailer 14
-
$3,954 CAD
View
Price last confirmed 38 days ago
B+
Retailer 15
-
$4,138 CAD
View
B+
Retailer 16
-
$4,209 CAD
View
Retailer 17
-
$4,218 CAD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$5,926 CAD
View
Retailer 19
-
$7,163 CAD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
8682ebd1-3440-4309-9dfb-944ef4ce9066 · Oct 3
$7,163 CAD
$5,129 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from $2,574 CADSave up to $3,352 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
$2,574 CAD