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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 $566 NZD
As of November 4, 2026
Save $1,827 NZD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,394 NZD 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 $566 to $2,394, a $1,827 spread on the same certified stone. NZ Jewellers lists it at $2,394. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,394 NZD|Low: $566 NZD|High: $2,394 NZD|Avg: $903 NZD
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$566 NZD
Retailer 11$568 NZD
Retailer 16$610 NZD
Retailer 14$631 NZD
Retailer 8$685 NZD
Retailer 15$725 NZD
Retailer 7$731 NZD
Retailer 6$761 NZD
Retailer 4$785 NZD
Retailer 3$859 NZD
Retailer 9$927 NZD
Retailer 13$965 NZD
Retailer 10$972 NZD
Retailer 2$1,147 NZD
Retailer 12$1,440 NZD
NZ Jewellers$2,394 NZD

33 data points across 16 retailers

15 retailers$566 NZD to $2,394 NZD

A
Cheapest Retailer
-
$566 NZD
A
Retailer 2
-
$568 NZD
View
Retailer 3
-
$610 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$631 NZD
View
B+
Retailer 5
-
$725 NZD
View
B+
Retailer 6
-
$731 NZD
View
B+
Retailer 7
-
$761 NZD
View
B+
Retailer 8
-
$785 NZD
View
B+
Retailer 9
-
$859 NZD
View
B+
Retailer 10
-
$927 NZD
View
B
Retailer 11
-
$965 NZD
View
B+
Retailer 12
-
$972 NZD
View
B
Retailer 13
-
$1,147 NZD
View
B
Retailer 14
-
$1,440 NZD
View
Most Expensive
C
NZ Jewellers
4b62d1b1-7972-4fc0-8517-acb5d204728c · Nov 4
$2,394 NZD
$1,327 USD
View
14 more retailers have this diamond
Prices start from $566 NZDSave up to $1,827 NZD

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
$566 NZD