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Round|Natural|GIA

4.20ct G VS2 Round Natural Diamond

VG • G/VS2 • GIA 16427555

Certificate GIA 16427555

Diamond specifications and retailer prices

From $175,698 AUD
$123,418 USD
As of October 30, 2026
Save $87,829 AUD (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $263,527 AUD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 4.2ct natural round diamond

This 4.2ct natural round sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by GIA 16427555. Listed at 9 retailers as of October 29, 2026, with prices from $175,698 to $263,527, a $87,829 spread on the same certified stone. Diamond Quarter lists it at $263,527. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.20
Carat
G
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 16427555
Dimensions10.55 × 10.40 × 6.22 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Culet sizeNone
Top View
10.55 mm10.40 mm4.20 ctG / VS2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 16427555
Side View
Table 59.0%Crown 35.5°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $184,370 AUD|Low: $170,546 AUD|High: $210,921 AUD|Avg: $189,247 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 13, 2026
Retailer 3$175,698 AUD
Retailer 4$177,509 AUD
Retailer 5$180,293 AUD
Retailer 2$184,190 AUD
Retailer 1$184,370 AUD
Retailer 6$204,116 AUD
Retailer 7$204,116 AUD
Retailer 8$210,921 AUD

4 data points across 8 retailers

9 retailers$175,698 AUD to $263,527 AUD

B
Cheapest Retailer
-
$175,698 AUD
$123,418 USD
B
Retailer 2
-
$177,509 AUD
$124,690 USD
View
B+
Retailer 3
-
$180,293 AUD
$126,646 USD
View
B+
Retailer 4
-
$184,190 AUD
$129,383 USD
View
Final sale: no returns
B+
Retailer 5
-
$184,370 AUD
$129,510 USD
View
B
Retailer 6
-
$204,116 AUD
$143,380 USD
View
B
Retailer 7
-
$204,116 AUD
$143,380 USD
View
B
Retailer 8
-
$210,921 AUD
$148,160 USD
View
Most Expensive
B
Diamond Quarter
4.2VS2G1655B79EN · Oct 29
$263,527 AUD
£145,759 GBP
View
8 more retailers have this diamond
Prices start from $175,698 AUDSave up to $87,829 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.

B+
4.20ct Round
$175,698 AUD