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4.50ct H SI1 Round Natural Diamond

EX • H/SI1 • IGI 737525859

Shape and cutting style on the report: Round brilliant

Certificate IGI 737525859

Diamond specifications and retailer prices

From HK$383,153 HKD
$48,836 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: HK$383,153 HKD at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

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 IGI 737525859. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 737525859
Dimensions10.47 × 10.53 × 6.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.47 mm10.53 mm4.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 737525859
Side View
Table 56.0%Crown 36.4°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 62.5%

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: Nov 2
Current: HK$905,276 HKD|Low: HK$260,324 HKD|High: HK$976,242 HKD|Avg: HK$470,815 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
October 8, 2026
Retailer 10HK$260,324 HKD
Retailer 6HK$320,575 HKD
Retailer 7HK$351,484 HKD
Retailer 11HK$359,670 HKD
The Diamond GuysHK$383,153 HKD
Retailer 8HK$386,337 HKD
Retailer 9HK$400,252 HKD
Retailer 2HK$426,243 HKD
Retailer 3HK$444,284 HKD
Retailer 1HK$905,276 HKD
Retailer 4HK$969,672 HKD
Retailer 5HK$976,242 HKD

2 data points across 12 retailers

1 retailer

B+
The Diamond Guys
1942748994 · Nov 2
HK$383,153 HKD
$48,836 USD
View

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$383,153 HKD