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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 HK$1,528 HKD
As of November 6, 2026
Save HK$8,080 HKD (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$9,844 HKD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$9,609 HKD|Low: HK$1,528 HKD|High: HK$10,110 HKD|Avg: HK$3,286 HKD|-3.8%
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 11HK$1,528 HKD
Retailer 8HK$1,904 HKD
Retailer 17HK$2,124 HKD
Retailer 13HK$2,328 HKD
Retailer 9HK$2,406 HKD
Retailer 10HK$2,477 HKD
Retailer 2HK$2,539 HKD
Retailer 6HK$2,571 HKD
Retailer 16HK$2,641 HKD
Retailer 5HK$2,853 HKD
Retailer 15HK$2,986 HKD
Retailer 12HK$3,135 HKD
Retailer 3HK$3,300 HKD
Retailer 14HK$3,691 HKD
Retailer 7HK$3,919 HKD
Retailer 4HK$4,883 HKD
NZ JewellersHK$9,609 HKD

18 data points across 17 retailers

22 retailersHK$1,528 HKD to HK$9,609 HKD

A
Cheapest Retailer
-
HK$1,528 HKD
A
Retailer 2
-
HK$1,904 HKD
View
A
Retailer 3
-
HK$2,124 HKD
View
A
Retailer 4
-
HK$2,328 HKD
View
Retailer 5
-
HK$2,406 HKD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$2,477 HKD
View
A
Retailer 7
-
HK$2,539 HKD
View
A
Retailer 8
-
HK$2,571 HKD
View
A
Retailer 9
-
HK$2,641 HKD
View
Retailer 10
-
HK$2,837 HKD
View
Price last confirmed 38 days ago
A
Retailer 11
-
HK$2,853 HKD
View
Retailer 12
-
HK$2,861 HKD
View
Price last confirmed 51 days ago
A
Retailer 13
-
HK$2,986 HKD
View
A
Retailer 14
-
HK$3,135 HKD
View
A
Retailer 15
-
HK$3,300 HKD
View
Retailer 16
-
HK$3,425 HKD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
HK$3,691 HKD
View
B+
Retailer 18
-
HK$3,919 HKD
View
Retailer 19
-
HK$4,036 HKD
View
Price last confirmed 38 days ago
B+
Retailer 20
-
HK$4,883 HKD
View
B
Retailer 21
-
HK$9,609 HKD
View
Most Expensive
NZ Jewellers
1bccaf41-e474-481f-b7e3-ae63fd9220d0 · Sep 28
HK$9,844 HKD
$1,256 USD
View
Price last confirmed 39 days ago
21 more retailers have this diamond
Prices start from HK$1,528 HKDSave up to HK$8,080 HKD

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
HK$1,528 HKD