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Round|Natural|GIA

4.20ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 7556007875

Certificate GIA 7556007875

Diamond specifications and retailer prices

From $84,787 AUD
HK$465,300 HKD
As of November 1, 2026
Save $32,826 AUD (28%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $150,521 AUD at MOH London · As of October 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 7556007875. Listed at 16 retailers as of November 1, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7556007875
Dimensions10.27 × 10.31 × 6.35 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
10.27 mm10.31 mm4.20 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556007875
Side View
Table 58.0%Crown 35°Girdle: STK-STKPavilion 40.8°Culet: NoneDepth 61.7%

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: $150,521 AUD|Low: $84,787 AUD|High: $150,521 AUD|Avg: $106,305 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 15$84,787 AUD
Retailer 14$90,239 AUD
Retailer 8$90,787 AUD
Retailer 10$90,913 AUD
Retailer 11$91,957 AUD
Retailer 13$94,930 AUD
Retailer 3$95,054 AUD
Retailer 12$103,447 AUD
Retailer 6$106,182 AUD
Retailer 9$107,928 AUD
Retailer 4$110,733 AUD
Retailer 7$117,122 AUD
Retailer 5$117,265 AUD
Retailer 2$117,614 AUD
MOH London$150,521 AUD

39 data points across 15 retailers

16 retailers$84,787 AUD to $117,614 AUD

A
Cheapest Retailer
-
$84,787 AUD
HK$465,300 HKD
A
Retailer 2
-
$90,239 AUD
$63,388 USD
View
A
Retailer 3
-
$90,787 AUD
₹6,073,630 INR
View
Retailer 4
-
$90,913 AUD
$63,861 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$94,930 AUD
$66,683 USD
View
Retailer 6
-
$95,054 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$99,199 AUD
$69,682 USD
View
Price last confirmed 35 days ago
Retailer 8
-
$103,447 AUD
£57,217 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
$106,182 AUD
$74,587 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$107,928 AUD
£59,696 GBP
View
Retailer 11
-
$113,878 AUD
$79,993 USD
View
Price last confirmed 34 days ago
Retailer 12
-
$117,122 AUD
ZAR 1,329,111 ZAR
View
Price last confirmed 31 days ago
Retailer 13
-
$117,265 AUD
£64,860 GBP
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$117,614 AUD
€78,683 EUR
View
Retailer 15
-
$118,257 AUD
$83,069 USD
View
Price last confirmed 34 days ago
Most Expensive
MOH London
10E99DC4B · Oct 1
$150,521 AUD
£83,254 GBP
View
Price last confirmed 31 days ago
15 more retailers have this diamond
Prices start from $84,787 AUDSave up to $32,826 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
$84,787 AUD