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1.03ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 825677309

Shape and cutting style on the report: Round brilliant

Certificate IGI 825677309

Diamond specifications and retailer prices

From $2,140 CAD
As of November 5, 2026
Save $3,585 CAD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,725 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct 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 IGI 825677309. Listed at 14 retailers as of November 5, 2026, with prices from $2,140 to $5,725, a $3,585 spread on the same certified stone. NZ Jewellers lists it at $5,725. 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

1.03
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 825677309
Dimensions6.43 × 6.46 × 4.02 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.43 mm6.46 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825677309
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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 5
Current: $2,215 CAD|Low: $2,165 CAD|High: $4,160 CAD|Avg: $2,847 CAD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$2,165 CAD
Retailer 1$2,215 CAD
Retailer 2$2,634 CAD
Retailer 3$2,730 CAD
Retailer 5$2,864 CAD
Retailer 4$3,180 CAD
Retailer 6$4,100 CAD

34 data points across 7 retailers

14 retailers$2,140 CAD to $5,725 CAD

A
Cheapest Retailer
-
$2,140 CAD
A
Retailer 2
-
$2,165 CAD
View
Final sale: no returns
A
Retailer 3
-
$2,215 CAD
View
Retailer 4
-
$2,348 CAD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$2,348 CAD
View
A
Retailer 6
-
$2,444 CAD
View
B+
Retailer 7
-
$2,455 CAD
View
B+
Retailer 8
-
$2,634 CAD
View
B+
Retailer 9
-
$2,708 CAD
View
B+
Retailer 10
-
$2,730 CAD
View
B+
Retailer 11
-
$2,864 CAD
View
B+
Retailer 12
-
$3,180 CAD
View
B
Retailer 13
-
$4,100 CAD
View
Most Expensive
B
NZ Jewellers
e61d0523-7643-42e5-af4a-3b1fe5f5a3ac · Nov 5
$5,725 CAD
$4,099 USD
View
13 more retailers have this diamond
Prices start from $2,140 CADSave up to $3,585 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
1.03ct Round
$2,140 CAD