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Round|Natural|GIA

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6492856760

Certificate GIA 6492856760

Diamond specifications and retailer prices

From $267 SGD
As of November 6, 2026
Save $589 SGD (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,653 SGD 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 6492856760. Listed at 17 retailers as of November 4, 2026, with a 221% 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6492856760
Dimensions4.90 × 4.87 × 3.07 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
4.90 mm4.87 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6492856760
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

Caratlytics Score

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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 6
Current: $267 SGD|Low: $267 SGD|High: $875 SGD|Avg: $497 SGD|-10.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 1$267 SGD
Retailer 10$293 SGD
Retailer 4$327 SGD
Retailer 5$392 SGD
Retailer 6$402 SGD
Retailer 2$439 SGD
Retailer 7$466 SGD
Retailer 9$519 SGD
Retailer 12$536 SGD
Retailer 11$577 SGD
Retailer 8$636 SGD
Retailer 3$658 SGD
Retailer 13$856 SGD

24 data points across 13 retailers

17 retailers$267 SGD to $856 SGD

A
Cheapest Retailer
-
$267 SGD
A
Retailer 2
-
$293 SGD
View
A
Retailer 3
-
$327 SGD
View
A
Retailer 4
-
$392 SGD
View
A
Retailer 5
-
$402 SGD
View
A
Retailer 6
-
$439 SGD
View
Retailer 7
-
$459 SGD
View
Price last confirmed 51 days ago
A
Retailer 8
-
$466 SGD
View
Retailer 9
-
$482 SGD
View
Price last confirmed 38 days ago
A
Retailer 10
-
$519 SGD
View
A
Retailer 11
-
$536 SGD
View
B+
Retailer 12
-
$577 SGD
View
Retailer 13
-
$581 SGD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$636 SGD
View
B+
Retailer 15
-
$658 SGD
View
B+
Retailer 16
-
$856 SGD
View
Most Expensive
NZ Jewellers
e999b532-bd93-40f3-bd9e-ca661baaf4aa · Sep 28
$1,653 SGD
$1,294 USD
View
Price last confirmed 39 days ago
16 more retailers have this diamond
Prices start from $267 SGDSave up to $589 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
$267 SGD