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Round|Natural|GIA

0.45ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 6381753831

Certificate GIA 6381753831

Diamond specifications and retailer prices

From $439 CAD
As of November 4, 2026
Save $1,415 CAD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,853 CAD at NZ Jewellers · As of November 4, 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 very-good cut grade and certified by GIA 6381753831. Listed at 15 retailers as of November 4, 2026, with prices from $439 to $1,853, a $1,415 spread on the same certified stone. NZ Jewellers lists it at $1,853. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.45
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6381753831
Dimensions4.80 × 4.77 × 3.09 mm
L/W Ratio1.01
Top View
4.80 mm4.77 mm0.45 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6381753831
Side View
Table 55.0%Crown 38.5°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,853 CAD|Low: $439 CAD|High: $1,853 CAD|Avg: $699 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 5$439 CAD
Retailer 11$440 CAD
Retailer 16$472 CAD
Retailer 14$489 CAD
Retailer 8$531 CAD
Retailer 15$561 CAD
Retailer 7$566 CAD
Retailer 6$589 CAD
Retailer 4$608 CAD
Retailer 3$665 CAD
Retailer 9$718 CAD
Retailer 13$747 CAD
Retailer 10$753 CAD
Retailer 2$888 CAD
Retailer 12$1,114 CAD
NZ Jewellers$1,853 CAD

33 data points across 16 retailers

15 retailers$439 CAD to $1,853 CAD

A
Cheapest Retailer
-
$439 CAD
A
Retailer 2
-
$440 CAD
View
Retailer 3
-
$472 CAD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$489 CAD
View
B+
Retailer 5
-
$561 CAD
View
B+
Retailer 6
-
$566 CAD
View
B+
Retailer 7
-
$589 CAD
View
B+
Retailer 8
-
$608 CAD
View
B+
Retailer 9
-
$665 CAD
View
B+
Retailer 10
-
$718 CAD
View
B
Retailer 11
-
$747 CAD
View
B+
Retailer 12
-
$753 CAD
View
B
Retailer 13
-
$888 CAD
View
B
Retailer 14
-
$1,114 CAD
View
Most Expensive
C
NZ Jewellers
4b62d1b1-7972-4fc0-8517-acb5d204728c · Nov 4
$1,853 CAD
$1,327 USD
View
14 more retailers have this diamond
Prices start from $439 CADSave up to $1,415 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
$439 CAD