CaratHunter
Plans
Round|Natural|GIA

0.42ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2494386639

Certificate GIA 2494386639

Diamond specifications and retailer prices

From $750 AUD
$527 USD
As of October 29, 2026
Save $1,737 AUD (70%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,487 AUD at NZ Jewellers · As of October 26, 2026
View at NZ Jewellers

About this 0.42ct natural round diamond

This 0.42ct natural round sits in the sub-half-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2494386639. Listed at 17 retailers as of October 26, 2026, with prices from $750 to $2,487, a $1,737 spread on the same certified stone. NZ Jewellers lists it at $2,487. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.42
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2494386639
Dimensions4.85 × 4.81 × 2.97 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
4.85 mm4.81 mm0.42 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2494386639
Side View
Table 59.0%Crown 32.5°Girdle: ThickPavilion 41.8°Culet: NoneDepth 61.4%

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: $2,487 AUD|Low: $732 AUD|High: $2,505 AUD|Avg: $1,063 AUD|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9$750 AUD
Retailer 6$797 AUD
Retailer 3$854 AUD
Retailer 10$868 AUD
Retailer 7$980 AUD
Retailer 8$984 AUD
Retailer 5$991 AUD
Retailer 2$1,178 AUD
Retailer 4$1,840 AUD
NZ Jewellers$2,487 AUD

44 data points across 10 retailers

17 retailers$750 AUD to $2,487 AUD

A
Cheapest Retailer
-
$750 AUD
$527 USD
Retailer 2
-
$773 AUD
$543 USD
View
Price last confirmed 29 days ago
Retailer 3
-
$779 AUD
$547 USD
View
Price last confirmed 35 days ago
A
Retailer 4
-
$793 AUD
$557 USD
View
A
Retailer 5
-
$797 AUD
$560 USD
View
Retailer 6
-
$833 AUD
$585 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
$854 AUD
$600 USD
View
Retailer 8
-
$892 AUD
$627 USD
View
Price last confirmed 31 days ago
Retailer 9
-
$931 AUD
$654 USD
View
Price last confirmed 36 days ago
B+
Retailer 10
-
$980 AUD
$689 USD
View
B+
Retailer 11
-
$984 AUD
$691 USD
View
B+
Retailer 12
-
$991 AUD
£548 GBP
View
B+
Retailer 13
-
$1,178 AUD
€788 EUR
View
B
Retailer 14
-
$1,773 AUD
£981 GBP
View
B
Retailer 15
-
$1,840 AUD
£1,018 GBP
View
Retailer 16
-
$2,440 AUD
$1,714 USD
View
Price last confirmed 35 days ago
Most Expensive
B
NZ Jewellers
9e63544f-79c5-4f44-9fb6-1a41bb2d823d · Oct 26
$2,487 AUD
$1,747 USD
View
16 more retailers have this diamond
Prices start from $750 AUDSave up to $1,737 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
0.42ct Round
$750 AUD