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4.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1545519911

Certificate GIA 1545519911

Diamond specifications and retailer prices

From HK$595,034 HKD
$75,842 USD
As of October 30, 2026
Save HK$377,028 HKD (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$972,062 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 4.5ct natural round diamond

This 4.5ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1545519911. Listed at 9 retailers as of October 30, 2026, with prices from HK$595,034 to HK$972,062, a HK$377,028 spread on the same certified stone. MOH London lists it at HK$972,062. 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

4.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1545519911
Dimensions10.52 × 10.56 × 6.52 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
10.52 mm10.56 mm4.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1545519911
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$972,062 HKD|Low: HK$595,034 HKD|High: HK$983,769 HKD|Avg: HK$693,357 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4HK$595,034 HKD
Retailer 5HK$598,387 HKD
Retailer 2HK$625,129 HKD
Retailer 8HK$625,381 HKD
Retailer 6HK$661,149 HKD
Retailer 7HK$686,577 HKD
Retailer 3HK$737,217 HKD
MOH LondonHK$972,062 HKD

38 data points across 8 retailers

9 retailersHK$595,034 HKD to HK$972,062 HKD

B+
Cheapest Retailer
-
HK$595,034 HKD
$75,842 USD
B+
Retailer 2
-
HK$598,387 HKD
$76,269 USD
View
B+
Retailer 3
-
HK$625,129 HKD
£62,738 GBP
View
B+
Retailer 4
-
HK$625,381 HKD
$79,710 USD
View
B
Retailer 5
-
HK$661,149 HKD
$84,269 USD
View
B
Retailer 6
-
HK$686,577 HKD
$87,510 USD
View
B
Retailer 7
-
HK$722,903 HKD
$92,140 USD
View
B
Retailer 8
-
HK$737,217 HKD
€89,490 EUR
View
Most Expensive
B
MOH London
B4CE25EEE · Nov 1
HK$972,062 HKD
£97,557 GBP
View
8 more retailers have this diamond
Prices start from HK$595,034 HKDSave up to HK$377,028 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.

B+
4.50ct Round
HK$595,034 HKD