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Round|Natural|GIA

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7452975956

Certificate GIA 7452975956

Diamond specifications and retailer prices

From $330 CAD
As of November 6, 2026
Save $722 CAD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,890 CAD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.45ct natural round diamond

This 0.45ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7452975956. Listed at 15 retailers as of November 4, 2026, with a 219% 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

0.45
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7452975956
Dimensions4.94 × 4.88 × 3.02 mm
L/W Ratio1.01
Key to symbols
Feather, Cloud
Top View
4.94 mm4.88 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7452975956
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NDepth 61.6%

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: $330 CAD|Low: $330 CAD|High: $1,092 CAD|Avg: $626 CAD|-4.5%
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 1$330 CAD
Retailer 4$392 CAD
Retailer 5$492 CAD
Retailer 12$522 CAD
Retailer 2$527 CAD
Retailer 6$578 CAD
Retailer 8$620 CAD
Retailer 10$638 CAD
Retailer 9$711 CAD
Retailer 3$768 CAD
Retailer 7$771 CAD
Retailer 11$1,052 CAD

22 data points across 12 retailers

15 retailers$330 CAD to $1,052 CAD

A
Cheapest Retailer
-
$330 CAD
A
Retailer 2
-
$392 CAD
View
A
Retailer 3
-
$492 CAD
View
A
Retailer 4
-
$522 CAD
View
A
Retailer 5
-
$527 CAD
View
Retailer 6
-
$550 CAD
View
Price last confirmed 38 days ago
A
Retailer 7
-
$578 CAD
View
B+
Retailer 8
-
$620 CAD
View
B+
Retailer 9
-
$638 CAD
View
Retailer 10
-
$663 CAD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$711 CAD
View
B+
Retailer 12
-
$768 CAD
View
B+
Retailer 13
-
$771 CAD
View
B
Retailer 14
-
$1,052 CAD
View
Most Expensive
NZ Jewellers
3d161358-3166-49c8-b127-23b09c3c197c · Sep 28
$1,890 CAD
$1,353 USD
View
Price last confirmed 39 days ago
14 more retailers have this diamond
Prices start from $330 CADSave up to $722 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
0.45ct Round
$330 CAD