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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 $86,434 AUD
$60,715 USD
As of October 31, 2026
Save $60,827 AUD (41%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $147,261 AUD 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 $86,434 to $147,261, a $60,827 spread on the same certified stone. MOH London lists it at $147,261. 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: $147,261 AUD|Low: $86,432 AUD|High: $149,035 AUD|Avg: $100,605 AUD|-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 12$86,434 AUD
Retailer 9$88,494 AUD
Retailer 11$90,102 AUD
Retailer 3$90,610 AUD
Retailer 8$93,888 AUD
Retailer 5$94,726 AUD
Retailer 13$98,220 AUD
Retailer 4$98,399 AUD
Retailer 6$98,399 AUD
Retailer 14$100,115 AUD
Retailer 7$101,674 AUD
Retailer 15$103,966 AUD
Retailer 10$105,890 AUD
Retailer 2$111,633 AUD
MOH London$147,261 AUD

29 data points across 15 retailers

16 retailers$86,434 AUD to $147,261 AUD

A
Cheapest Retailer
-
$86,434 AUD
$60,715 USD
Final sale: no returns
A
Retailer 2
-
$88,494 AUD
CA$86,337 CAD
View
A
Retailer 3
-
$90,102 AUD
$63,292 USD
View
A
Retailer 4
-
$90,610 AUD
$63,649 USD
View
A
Retailer 5
-
$93,888 AUD
£51,930 GBP
View
A
Retailer 6
-
$94,726 AUD
$66,540 USD
View
B+
Retailer 7
-
$98,220 AUD
$68,994 USD
View
Retailer 8
-
$98,220 AUD
$68,994 USD
View
Price last confirmed 35 days ago
B+
Retailer 9
-
$98,399 AUD
$69,120 USD
View
B+
Retailer 10
-
$98,399 AUD
$69,120 USD
View
B+
Retailer 11
-
$100,115 AUD
$70,325 USD
View
B+
Retailer 12
-
$101,674 AUD
$71,420 USD
View
B+
Retailer 13
-
$103,966 AUD
$73,030 USD
View
B+
Retailer 14
-
$105,890 AUD
$74,382 USD
View
B+
Retailer 15
-
$111,633 AUD
€74,682 EUR
View
Most Expensive
B
MOH London
0CFDA7370 · Nov 1
$147,261 AUD
£81,451 GBP
View
15 more retailers have this diamond
Prices start from $86,434 AUDSave up to $60,827 AUD

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
$86,434 AUD