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Round|Natural|GIA

4.51ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 1246058156

Certificate GIA 1246058156

Diamond specifications and retailer prices

From HK$580,833 HKD
$74,032 USD
As of October 29, 2026
Save HK$368,082 HKD (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$948,915 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 GIA 1246058156. Listed at 8 retailers as of October 29, 2026, with prices from HK$580,833 to HK$948,915, a HK$368,082 spread on the same certified stone. MOH London lists it at HK$948,915. 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 angle31.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1246058156
Dimensions10.84 × 10.88 × 6.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cloud
Top View
10.84 mm10.88 mm4.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1246058156
Side View
Table 60.0%Crown 31.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 58.8%

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: Oct 29
Current: HK$948,915 HKD|Low: HK$580,833 HKD|High: HK$950,181 HKD|Avg: HK$672,602 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4HK$580,833 HKD
Retailer 6HK$584,105 HKD
Retailer 3HK$610,220 HKD
Retailer 5HK$645,372 HKD
Retailer 9HK$648,307 HKD
Retailer 7HK$670,195 HKD
Retailer 8HK$682,604 HKD
Retailer 2HK$719,621 HKD
MOH LondonHK$948,915 HKD

7 data points across 9 retailers

8 retailersHK$580,833 HKD to HK$948,915 HKD

A
Cheapest Retailer
-
HK$580,833 HKD
$74,032 USD
A
Retailer 2
-
HK$584,105 HKD
$74,449 USD
View
B+
Retailer 3
-
HK$610,220 HKD
£61,242 GBP
View
B+
Retailer 4
-
HK$645,372 HKD
$82,258 USD
View
B+
Retailer 5
-
HK$648,307 HKD
$82,632 USD
View
B+
Retailer 6
-
HK$670,195 HKD
$85,422 USD
View
B+
Retailer 7
-
HK$719,621 HKD
€87,354 EUR
View
Most Expensive
B
MOH London
EA8485C8C · Nov 1
HK$948,915 HKD
£95,234 GBP
View
7 more retailers have this diamond
Prices start from HK$580,833 HKDSave up to HK$368,082 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$580,833 HKD