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Round|Natural|GIA

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1553091853

Certificate GIA 1553091853

Diamond specifications and retailer prices

From $3,244 CAD
As of November 6, 2026
Save $3,845 CAD (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,089 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553091853. Listed at 7 retailers as of November 5, 2026, with prices from $3,244 to $7,089, a $3,845 spread on the same certified stone. NZ Jewellers lists it at $7,089. 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
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1553091853
Dimensions6.43 × 6.45 × 4.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Pinpoint
Top View
6.43 mm6.45 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553091853
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

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 6
Current: $3,244 CAD|Low: $3,242 CAD|High: $6,012 CAD|Avg: $4,110 CAD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$3,244 CAD
Retailer 2$3,566 CAD
Retailer 6$3,827 CAD
Retailer 4$3,934 CAD
Retailer 3$4,138 CAD
Retailer 5$5,923 CAD

36 data points across 6 retailers

7 retailers$3,244 CAD to $7,089 CAD

B+
Cheapest Retailer
-
$3,244 CAD
B+
Retailer 2
-
$3,566 CAD
View
B
Retailer 3
-
$3,827 CAD
View
B+
Retailer 4
-
$3,934 CAD
View
B
Retailer 5
-
$4,138 CAD
View
B
Retailer 6
-
$5,923 CAD
View
Most Expensive
B
NZ Jewellers
64e19d28-db2e-4f84-b006-dd5af6c62b06 · Nov 5
$7,089 CAD
$5,076 USD
View
6 more retailers have this diamond
Prices start from $3,244 CADSave up to $3,845 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+
1.03ct Round
$3,244 CAD