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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 HK$1,803 HKD
As of November 6, 2026
Save HK$3,731 HKD (67%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$9,146 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5453674935. Listed at 16 retailers as of November 4, 2026, with a 207% 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
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$1,803 HKD|Low: HK$1,442 HKD|High: HK$5,557 HKD|Avg: HK$2,940 HKD
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 4HK$1,450 HKD
Retailer 1HK$1,803 HKD
Retailer 14HK$2,100 HKD
Retailer 5HK$2,116 HKD
Retailer 7HK$2,179 HKD
Retailer 13HK$2,414 HKD
Retailer 8HK$3,025 HKD
Retailer 6HK$3,229 HKD
Retailer 9HK$3,284 HKD
Retailer 2HK$3,417 HKD
Retailer 3HK$3,574 HKD
Retailer 10HK$3,731 HKD
Retailer 11HK$4,013 HKD
Retailer 15HK$4,154 HKD
Retailer 12HK$5,533 HKD

37 data points across 15 retailers

16 retailersHK$1,803 HKD to HK$5,533 HKD

A
Cheapest Retailer
-
HK$1,803 HKD
Retailer 2
-
HK$2,022 HKD
View
Price last confirmed 36 days ago
A
Retailer 3
-
HK$2,100 HKD
View
Retailer 4
-
HK$2,116 HKD
View
Price last confirmed 29 days ago
Retailer 5
-
HK$2,273 HKD
View
Price last confirmed 38 days ago
A
Retailer 6
-
HK$2,414 HKD
View
Retailer 7
-
HK$2,720 HKD
View
Price last confirmed 35 days ago
A
Retailer 8
-
HK$3,025 HKD
View
Retailer 9
-
HK$3,229 HKD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
HK$3,284 HKD
View
B+
Retailer 11
-
HK$3,417 HKD
View
B+
Retailer 12
-
HK$3,731 HKD
View
B+
Retailer 13
-
HK$4,013 HKD
View
B+
Retailer 14
-
HK$4,154 HKD
View
B
Retailer 15
-
HK$5,533 HKD
View
Most Expensive
NZ Jewellers
61140e6e-313c-4aea-8a0e-58ef328bf53b · Oct 3
HK$9,146 HKD
$1,167 USD
View
Price last confirmed 34 days ago
15 more retailers have this diamond
Prices start from HK$1,803 HKDSave up to HK$3,731 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$1,803 HKD