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Round|Natural|GIA

0.45ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5453674935

Certificate GIA 5453674935

Diamond specifications and retailer prices

From $255 SGD
As of November 3, 2026
Save $650 SGD (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,496 SGD at NZ Jewellers · As of October 3, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5453674935. Listed at 16 retailers as of November 3, 2026, with a 255% 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5453674935
Dimensions4.87 × 4.91 × 3.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.87 mm4.91 mm0.45 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5453674935
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 3
Current: $495 SGD|Low: $236 SGD|High: $909 SGD|Avg: $480 SGD|+21.0%
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
Retailer 14
Retailer 15
November 6, 2026
Retailer 4$237 SGD
Retailer 10$255 SGD
Retailer 14$343 SGD
Retailer 5$346 SGD
Retailer 7$356 SGD
Retailer 13$395 SGD
Retailer 1$495 SGD
Retailer 6$528 SGD
Retailer 8$537 SGD
Retailer 2$559 SGD
Retailer 3$584 SGD
Retailer 9$610 SGD
Retailer 11$656 SGD
Retailer 15$679 SGD
Retailer 12$905 SGD

37 data points across 15 retailers

16 retailers$255 SGD to $905 SGD

A
Cheapest Retailer
-
$255 SGD
Retailer 2
-
$331 SGD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$343 SGD
View
Retailer 4
-
$346 SGD
View
Price last confirmed 29 days ago
Retailer 5
-
$372 SGD
View
Price last confirmed 38 days ago
A
Retailer 6
-
$395 SGD
View
Retailer 7
-
$445 SGD
View
Price last confirmed 35 days ago
A
Retailer 8
-
$495 SGD
View
Retailer 9
-
$528 SGD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
$537 SGD
View
B+
Retailer 11
-
$559 SGD
View
B+
Retailer 12
-
$610 SGD
View
B+
Retailer 13
-
$656 SGD
View
B+
Retailer 14
-
$679 SGD
View
B
Retailer 15
-
$905 SGD
View
Most Expensive
NZ Jewellers
61140e6e-313c-4aea-8a0e-58ef328bf53b · Oct 3
$1,496 SGD
$1,167 USD
View
Price last confirmed 34 days ago
15 more retailers have this diamond
Prices start from $255 SGDSave up to $650 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
$255 SGD