CaratHunter
Plans
Round|Natural|GIA

0.45ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 2418325645

Certificate GIA 2418325645

Diamond specifications and retailer prices

From HK$1,342 HKD
As of November 6, 2026
Save HK$2,965 HKD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$9,155 HKD 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 2418325645. Listed at 15 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.45
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2418325645
Dimensions4.80 × 4.78 × 3.07 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Top View
4.80 mm4.78 mm0.45 ctJ / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2418325645
Side View
Table 57.0%Crown 36.5°Girdle: THK-THKPavilion 40.8°Culet: NoneDepth 64.1%

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$1,342 HKD|Low: HK$1,342 HKD|High: HK$4,566 HKD|Avg: HK$2,664 HKD|-8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1HK$1,342 HKD
Retailer 6HK$1,459 HKD
Retailer 2HK$2,063 HKD
Retailer 9HK$2,157 HKD
Retailer 10HK$2,299 HKD
Retailer 5HK$2,683 HKD
Retailer 3HK$2,863 HKD
Retailer 8HK$2,887 HKD
Retailer 4HK$3,334 HKD
Retailer 7HK$4,307 HKD

29 data points across 10 retailers

15 retailersHK$1,342 HKD to HK$4,307 HKD

A
Cheapest Retailer
-
HK$1,342 HKD
A
Retailer 2
-
HK$1,459 HKD
View
B+
Retailer 3
-
HK$1,702 HKD
View
Retailer 4
-
HK$2,024 HKD
View
Price last confirmed 34 days ago
A
Retailer 5
-
HK$2,063 HKD
View
A
Retailer 6
-
HK$2,157 HKD
View
Retailer 7
-
HK$2,275 HKD
View
Price last confirmed 38 days ago
A
Retailer 8
-
HK$2,299 HKD
View
B+
Retailer 9
-
HK$2,683 HKD
View
Retailer 10
-
HK$2,722 HKD
View
Price last confirmed 35 days ago
B+
Retailer 11
-
HK$2,863 HKD
View
B+
Retailer 12
-
HK$2,887 HKD
View
B+
Retailer 13
-
HK$3,334 HKD
View
B
Retailer 14
-
HK$4,307 HKD
View
Most Expensive
NZ Jewellers
af6e61f0-455a-469c-ae2d-f7cbce4d9ce3 · Oct 3
HK$9,155 HKD
$1,167 USD
View
Price last confirmed 34 days ago
14 more retailers have this diamond
Prices start from HK$1,342 HKDSave up to HK$2,965 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$1,342 HKD