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Round|Natural|GIA

0.45ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7452975956

Certificate GIA 7452975956

Diamond specifications and retailer prices

From HK$1,850 HKD
As of November 6, 2026
Save HK$4,052 HKD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$10,604 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 7452975956. Listed at 15 retailers as of November 4, 2026, with a 219% 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
SymmetryVery Good
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7452975956
Dimensions4.94 × 4.88 × 3.02 mm
L/W Ratio1.01
Key to symbols
Feather, Cloud
Top View
4.94 mm4.88 mm0.45 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7452975956
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NDepth 61.6%

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$1,850 HKD|Low: HK$1,850 HKD|High: HK$6,129 HKD|Avg: HK$3,512 HKD|-4.5%
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$1,850 HKD
Retailer 4HK$2,202 HKD
Retailer 5HK$2,759 HKD
Retailer 12HK$2,931 HKD
Retailer 2HK$2,955 HKD
Retailer 6HK$3,245 HKD
Retailer 8HK$3,480 HKD
Retailer 10HK$3,582 HKD
Retailer 9HK$3,989 HKD
Retailer 3HK$4,311 HKD
Retailer 7HK$4,326 HKD
Retailer 11HK$5,902 HKD

22 data points across 12 retailers

15 retailersHK$1,850 HKD to HK$5,902 HKD

A
Cheapest Retailer
-
HK$1,850 HKD
A
Retailer 2
-
HK$2,202 HKD
View
A
Retailer 3
-
HK$2,759 HKD
View
A
Retailer 4
-
HK$2,931 HKD
View
A
Retailer 5
-
HK$2,955 HKD
View
Retailer 6
-
HK$3,088 HKD
View
Price last confirmed 38 days ago
A
Retailer 7
-
HK$3,245 HKD
View
B+
Retailer 8
-
HK$3,480 HKD
View
B+
Retailer 9
-
HK$3,582 HKD
View
Retailer 10
-
HK$3,723 HKD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
HK$3,989 HKD
View
B+
Retailer 12
-
HK$4,311 HKD
View
B+
Retailer 13
-
HK$4,326 HKD
View
B
Retailer 14
-
HK$5,902 HKD
View
Most Expensive
NZ Jewellers
3d161358-3166-49c8-b127-23b09c3c197c · Sep 28
HK$10,604 HKD
$1,353 USD
View
Price last confirmed 39 days ago
14 more retailers have this diamond
Prices start from HK$1,850 HKDSave up to HK$4,052 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$1,850 HKD