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Round|Natural|GIA

4.20ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 2235431821

Certificate GIA 2235431821

Diamond specifications and retailer prices

From HK$476,352 HKD
$60,715 USD
As of October 31, 2026
Save HK$335,229 HKD (41%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$811,581 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 4.2ct natural round diamond

This 4.2ct 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 2235431821. Listed at 16 retailers as of October 31, 2026, with prices from HK$476,352 to HK$811,581, a HK$335,229 spread on the same certified stone. MOH London lists it at HK$811,581. 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

4.20
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2235431821
Dimensions10.21 × 10.27 × 6.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
10.21 mm10.27 mm4.20 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235431821
Side View
Table 59.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 62.7%

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: Oct 31
Current: HK$811,581 HKD|Low: HK$476,344 HKD|High: HK$821,356 HKD|Avg: HK$554,453 HKD|-1.1%
MOH London
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
November 1, 2026
Retailer 12HK$476,352 HKD
Retailer 9HK$487,707 HKD
Retailer 11HK$496,570 HKD
Retailer 3HK$499,369 HKD
Retailer 8HK$517,435 HKD
Retailer 5HK$522,053 HKD
Retailer 13HK$541,306 HKD
Retailer 4HK$542,295 HKD
Retailer 6HK$542,295 HKD
Retailer 14HK$551,749 HKD
Retailer 7HK$560,340 HKD
Retailer 15HK$572,971 HKD
Retailer 10HK$583,579 HKD
Retailer 2HK$615,229 HKD
MOH LondonHK$811,581 HKD

29 data points across 15 retailers

16 retailersHK$476,352 HKD to HK$811,581 HKD

A
Cheapest Retailer
-
HK$476,352 HKD
$60,715 USD
Final sale: no returns
A
Retailer 2
-
HK$487,707 HKD
CA$86,337 CAD
View
A
Retailer 3
-
HK$496,570 HKD
$63,292 USD
View
A
Retailer 4
-
HK$499,369 HKD
$63,649 USD
View
A
Retailer 5
-
HK$517,435 HKD
£51,930 GBP
View
A
Retailer 6
-
HK$522,053 HKD
$66,540 USD
View
B+
Retailer 7
-
HK$541,306 HKD
$68,994 USD
View
Retailer 8
-
HK$541,306 HKD
$68,994 USD
View
Price last confirmed 35 days ago
B+
Retailer 9
-
HK$542,295 HKD
$69,120 USD
View
B+
Retailer 10
-
HK$542,295 HKD
$69,120 USD
View
B+
Retailer 11
-
HK$551,749 HKD
$70,325 USD
View
B+
Retailer 12
-
HK$560,340 HKD
$71,420 USD
View
B+
Retailer 13
-
HK$572,971 HKD
$73,030 USD
View
B+
Retailer 14
-
HK$583,579 HKD
$74,382 USD
View
B+
Retailer 15
-
HK$615,229 HKD
€74,682 EUR
View
Most Expensive
B
MOH London
0CFDA7370 · Nov 1
HK$811,581 HKD
£81,451 GBP
View
15 more retailers have this diamond
Prices start from HK$476,352 HKDSave up to HK$335,229 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
4.20ct Round
HK$476,352 HKD