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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 $401 SGD
As of November 4, 2026
Save $1,294 SGD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,695 SGD 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 $401 to $1,695, a $1,294 spread on the same certified stone. NZ Jewellers lists it at $1,695. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,695 SGD|Low: $401 SGD|High: $1,695 SGD|Avg: $640 SGD
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$401 SGD
Retailer 11$402 SGD
Retailer 16$432 SGD
Retailer 14$447 SGD
Retailer 8$485 SGD
Retailer 15$513 SGD
Retailer 7$517 SGD
Retailer 6$539 SGD
Retailer 4$556 SGD
Retailer 3$608 SGD
Retailer 9$657 SGD
Retailer 13$683 SGD
Retailer 10$688 SGD
Retailer 2$812 SGD
Retailer 12$1,019 SGD
NZ Jewellers$1,695 SGD

33 data points across 16 retailers

15 retailers$401 SGD to $1,695 SGD

A
Cheapest Retailer
-
$401 SGD
A
Retailer 2
-
$402 SGD
View
Retailer 3
-
$432 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$447 SGD
View
B+
Retailer 5
-
$513 SGD
View
B+
Retailer 6
-
$517 SGD
View
B+
Retailer 7
-
$539 SGD
View
B+
Retailer 8
-
$556 SGD
View
B+
Retailer 9
-
$608 SGD
View
B+
Retailer 10
-
$657 SGD
View
B
Retailer 11
-
$683 SGD
View
B+
Retailer 12
-
$688 SGD
View
B
Retailer 13
-
$812 SGD
View
B
Retailer 14
-
$1,019 SGD
View
Most Expensive
C
NZ Jewellers
4b62d1b1-7972-4fc0-8517-acb5d204728c · Nov 4
$1,695 SGD
$1,327 USD
View
14 more retailers have this diamond
Prices start from $401 SGDSave up to $1,294 SGD

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
$401 SGD