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Round|Natural|GIA

0.45ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1459070089

Certificate GIA 1459070089

Diamond specifications and retailer prices

From $249 SGD
As of November 6, 2026
Save $1,317 SGD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,604 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1459070089. Listed at 22 retailers as of November 4, 2026, with a 529% 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
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1459070089
Dimensions4.89 × 4.84 × 3.07 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Key to symbols
Crystal, Cloud
Top View
4.89 mm4.84 mm0.45 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1459070089
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.2%

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 6
Current: $1,566 SGD|Low: $249 SGD|High: $1,680 SGD|Avg: $561 SGD|-6.8%
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
Retailer 17
November 6, 2026
Retailer 2$249 SGD
Retailer 8$310 SGD
Retailer 15$346 SGD
Retailer 11$379 SGD
Retailer 9$392 SGD
Retailer 16$399 SGD
Retailer 6$418 SGD
Retailer 5$419 SGD
Retailer 14$430 SGD
Retailer 4$465 SGD
Retailer 13$487 SGD
Retailer 10$511 SGD
Retailer 17$538 SGD
Retailer 12$602 SGD
Retailer 7$639 SGD
Retailer 3$796 SGD
NZ Jewellers$1,566 SGD

18 data points across 17 retailers

22 retailers$249 SGD to $1,566 SGD

A
Cheapest Retailer
-
$249 SGD
A
Retailer 2
-
$310 SGD
View
A
Retailer 3
-
$346 SGD
View
A
Retailer 4
-
$379 SGD
View
Retailer 5
-
$392 SGD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$399 SGD
View
A
Retailer 7
-
$418 SGD
View
A
Retailer 8
-
$419 SGD
View
A
Retailer 9
-
$430 SGD
View
Retailer 10
-
$462 SGD
View
Price last confirmed 38 days ago
A
Retailer 11
-
$465 SGD
View
Retailer 12
-
$466 SGD
View
Price last confirmed 51 days ago
A
Retailer 13
-
$487 SGD
View
A
Retailer 14
-
$511 SGD
View
A
Retailer 15
-
$538 SGD
View
Retailer 16
-
$558 SGD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
$602 SGD
View
B+
Retailer 18
-
$639 SGD
View
Retailer 19
-
$658 SGD
View
Price last confirmed 38 days ago
B+
Retailer 20
-
$796 SGD
View
B
Retailer 21
-
$1,566 SGD
View
Most Expensive
NZ Jewellers
1bccaf41-e474-481f-b7e3-ae63fd9220d0 · Sep 28
$1,604 SGD
$1,256 USD
View
Price last confirmed 39 days ago
21 more retailers have this diamond
Prices start from $249 SGDSave up to $1,317 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
$249 SGD