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4.51ct I VS1 Round Natural Diamond

EX • I/VS1 • IGI 826681744

Shape and cutting style on the report: Round brilliant

Certificate IGI 826681744

Diamond specifications and retailer prices

From HK$322,249 HKD
₹3,911,741 INR
As of November 1, 2026
Save HK$259,950 HKD (45%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$582,199 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 4.51ct natural round diamond

This 4.51ct natural round sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 826681744. Listed at 4 retailers as of November 1, 2026, with prices from HK$322,249 to HK$582,199, a HK$259,950 spread on the same certified stone. MOH London lists it at HK$582,199. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

4.51
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 826681744
Dimensions10.42 × 10.48 × 6.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
10.42 mm10.48 mm4.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 826681744
Side View
Table 56.0%Crown 36.7°Girdle: MED-STKPavilion 41.1°CuletDepth 63.7%

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 1
Current: HK$582,199 HKD|Low: HK$321,585 HKD|High: HK$652,664 HKD|Avg: HK$465,007 HKD|-9.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2HK$322,249 HKD
Retailer 3HK$378,806 HKD
Retailer 4HK$438,442 HKD
MOH LondonHK$582,199 HKD

45 data points across 4 retailers

4 retailersHK$322,249 HKD to HK$582,199 HKD

A
Cheapest Retailer
-
HK$322,249 HKD
₹3,911,741 INR
A
Retailer 2
-
HK$378,806 HKD
£38,017 GBP
View
A
Retailer 3
-
HK$438,442 HKD
€53,222 EUR
View
Most Expensive
B+
MOH London
DBF66B658 · Nov 1
HK$582,199 HKD
£58,430 GBP
View
3 more retailers have this diamond
Prices start from HK$322,249 HKDSave up to HK$259,950 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
4.51ct Round
HK$322,249 HKD