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Round|Natural|GIA

0.45ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7512589083

Certificate GIA 7512589083

Diamond specifications and retailer prices

From HK$2,641 HKD
As of November 6, 2026
Save HK$4,640 HKD (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$12,508 HKD at NZ Jewellers · As of October 8, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7512589083. Listed at 23 retailers as of November 4, 2026, with a 176% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7512589083
Dimensions4.86 × 4.89 × 3.07 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Crystal
Top View
4.86 mm4.89 mm0.45 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7512589083
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 63.0%

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$6,356 HKD|Low: HK$2,383 HKD|High: HK$7,696 HKD|Avg: HK$4,154 HKD|-4.0%
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 9HK$2,383 HKD
Retailer 4HK$2,641 HKD
Retailer 15HK$2,751 HKD
Retailer 16HK$2,821 HKD
Retailer 18HK$3,010 HKD
Retailer 5HK$3,315 HKD
Retailer 3HK$3,684 HKD
Retailer 7HK$3,684 HKD
Retailer 2HK$3,754 HKD
Retailer 8HK$3,762 HKD
Retailer 6HK$3,778 HKD
Retailer 11HK$4,075 HKD
Retailer 17HK$4,546 HKD
Retailer 13HK$4,922 HKD
Retailer 12HK$5,110 HKD
Retailer 10HK$5,275 HKD
Retailer 1HK$6,356 HKD
Retailer 14HK$7,281 HKD

27 data points across 18 retailers

23 retailersHK$2,641 HKD to HK$7,281 HKD

Retailer 1
-
HK$2,383 HKD
Price last confirmed 24 days ago
A
Retailer 2
-
HK$2,641 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,751 HKD
View
A
Retailer 4
-
HK$2,821 HKD
View
A
Retailer 5
-
HK$3,010 HKD
View
Retailer 6
-
HK$3,260 HKD
View
Price last confirmed 29 days ago
A
Retailer 7
-
HK$3,315 HKD
View
Retailer 8
-
HK$3,456 HKD
View
Price last confirmed 38 days ago
Retailer 9
-
HK$3,511 HKD
View
Price last confirmed 26 days ago
A
Retailer 10
-
HK$3,684 HKD
View
A
Retailer 11
-
HK$3,684 HKD
View
A
Retailer 12
-
HK$3,754 HKD
View
A
Retailer 13
-
HK$3,762 HKD
View
Retailer 14
-
HK$3,770 HKD
View
Price last confirmed 29 days ago
A
Retailer 15
-
HK$3,778 HKD
View
A
Retailer 16
-
HK$4,075 HKD
View
B+
Retailer 17
-
HK$4,546 HKD
View
B+
Retailer 18
-
HK$4,922 HKD
View
B+
Retailer 19
-
HK$5,110 HKD
View
Retailer 20
-
HK$5,275 HKD
View
Price last confirmed 34 days ago
B+
Retailer 21
-
HK$6,356 HKD
View
B
Retailer 22
-
HK$7,281 HKD
View
Most Expensive
NZ Jewellers
abaaa04a-5641-4d75-8c7f-3340310c481b · Oct 8
HK$12,508 HKD
$1,596 USD
View
Price last confirmed 28 days ago
22 more retailers have this diamond
Prices start from HK$2,641 HKDSave up to HK$4,640 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$2,641 HKD