CaratHunter
Plans
Round|Natural|GIA

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5453558823

Certificate GIA 5453558823

Diamond specifications and retailer prices

From HK$1,669 HKD
As of November 6, 2026
Save HK$3,832 HKD (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$9,405 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5453558823. Listed at 13 retailers as of November 4, 2026, with a 230% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5453558823
Dimensions4.94 × 4.97 × 3.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.94 mm4.97 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5453558823
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.5%

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$1,669 HKD|Low: HK$1,497 HKD|High: HK$5,541 HKD|Avg: HK$2,983 HKD|+7.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 1HK$1,669 HKD
Retailer 3HK$2,171 HKD
Retailer 4HK$2,171 HKD
Retailer 2HK$2,179 HKD
Retailer 12HK$2,414 HKD
Retailer 11HK$2,751 HKD
Retailer 5HK$3,010 HKD
Retailer 6HK$3,284 HKD
Retailer 8HK$3,715 HKD
Retailer 7HK$3,950 HKD
Retailer 10HK$4,154 HKD
Retailer 9HK$5,502 HKD

32 data points across 12 retailers

13 retailersHK$1,669 HKD to HK$5,502 HKD

A
Cheapest Retailer
-
HK$1,669 HKD
Retailer 2
-
HK$1,803 HKD
View
Price last confirmed 38 days ago
Retailer 3
-
HK$2,022 HKD
View
Price last confirmed 36 days ago
Retailer 4
-
HK$2,249 HKD
View
Price last confirmed 38 days ago
Retailer 5
-
HK$2,751 HKD
View
Price last confirmed 38 days ago
A
Retailer 6
-
HK$2,751 HKD
View
B+
Retailer 7
-
HK$3,010 HKD
View
B+
Retailer 8
-
HK$3,284 HKD
View
B+
Retailer 9
-
HK$3,715 HKD
View
B+
Retailer 10
-
HK$3,950 HKD
View
B+
Retailer 11
-
HK$4,154 HKD
View
B
Retailer 12
-
HK$5,502 HKD
View
Most Expensive
NZ Jewellers
c916847f-3a29-41ba-912d-bc606e888b4f · Sep 28
HK$9,405 HKD
$1,200 USD
View
Price last confirmed 39 days ago
12 more retailers have this diamond
Prices start from HK$1,669 HKDSave up to HK$3,832 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$1,669 HKD