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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7512589083

Certificate GIA 7512589083

Diamond specifications and retailer prices

From $432 SGD
As of November 4, 2026
Save $759 SGD (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,045 SGD at NZ Jewellers · As of October 8, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7512589083. Listed at 23 retailers as of November 4, 2026, with a 176% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7512589083
Dimensions4.86 × 4.89 × 3.07 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Crystal
Top View
4.86 mm4.89 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7512589083
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 63.0%

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: $1,039 SGD|Low: $390 SGD|High: $1,259 SGD|Avg: $679 SGD|-4.0%
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 9$390 SGD
Retailer 4$432 SGD
Retailer 15$450 SGD
Retailer 16$461 SGD
Retailer 18$492 SGD
Retailer 5$542 SGD
Retailer 3$602 SGD
Retailer 7$602 SGD
Retailer 2$614 SGD
Retailer 8$615 SGD
Retailer 6$618 SGD
Retailer 11$666 SGD
Retailer 17$743 SGD
Retailer 13$805 SGD
Retailer 12$836 SGD
Retailer 10$863 SGD
Retailer 1$1,039 SGD
Retailer 14$1,191 SGD

27 data points across 18 retailers

23 retailers$432 SGD to $1,191 SGD

Retailer 1
-
$390 SGD
Price last confirmed 24 days ago
A
Retailer 2
-
$432 SGD
View
Final sale: no returns
A
Retailer 3
-
$450 SGD
View
A
Retailer 4
-
$461 SGD
View
A
Retailer 5
-
$492 SGD
View
Retailer 6
-
$533 SGD
View
Price last confirmed 29 days ago
A
Retailer 7
-
$542 SGD
View
Retailer 8
-
$565 SGD
View
Price last confirmed 38 days ago
Retailer 9
-
$574 SGD
View
Price last confirmed 26 days ago
A
Retailer 10
-
$602 SGD
View
A
Retailer 11
-
$602 SGD
View
A
Retailer 12
-
$614 SGD
View
A
Retailer 13
-
$615 SGD
View
Retailer 14
-
$616 SGD
View
Price last confirmed 29 days ago
A
Retailer 15
-
$618 SGD
View
A
Retailer 16
-
$666 SGD
View
B+
Retailer 17
-
$743 SGD
View
B+
Retailer 18
-
$805 SGD
View
B+
Retailer 19
-
$836 SGD
View
Retailer 20
-
$863 SGD
View
Price last confirmed 34 days ago
B+
Retailer 21
-
$1,039 SGD
View
B
Retailer 22
-
$1,191 SGD
View
Most Expensive
NZ Jewellers
abaaa04a-5641-4d75-8c7f-3340310c481b · Oct 8
$2,045 SGD
$1,596 USD
View
Price last confirmed 28 days ago
22 more retailers have this diamond
Prices start from $432 SGDSave up to $759 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
$432 SGD