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0.42ct E SI2 Round Natural Diamond

EX • E/SI2 • IGI 831669597

Shape and cutting style on the report: Round brilliant

Certificate IGI 831669597

Diamond specifications and retailer prices

From $510 AUD
$358 USD
As of October 28, 2026
Save $1,446 AUD (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,956 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 IGI 831669597. Listed at 12 retailers as of October 26, 2026, with prices from $510 to $1,956, a $1,446 spread on the same certified stone. NZ Jewellers lists it at $1,956. 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
FluorescenceNone
Crown angle33.1°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 831669597
Dimensions4.83 × 4.88 × 2.91 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
4.83 mm4.88 mm0.42 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 831669597
Side View
Table 57.0%Crown 33.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.0%

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 28
Current: $1,956 AUD|Low: $510 AUD|High: $1,956 AUD|Avg: $867 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 11$510 AUD
Retailer 8$549 AUD
Retailer 7$569 AUD
Retailer 12$688 AUD
Retailer 9$696 AUD
Retailer 10$696 AUD
Retailer 3$717 AUD
Retailer 4$784 AUD
Retailer 5$852 AUD
Retailer 2$1,056 AUD
Retailer 6$1,184 AUD
NZ Jewellers$1,956 AUD

23 data points across 12 retailers

12 retailers$510 AUD to $1,956 AUD

A
Cheapest Retailer
-
$510 AUD
$358 USD
A
Retailer 2
-
$549 AUD
$386 USD
View
A
Retailer 3
-
$569 AUD
$400 USD
View
A
Retailer 4
-
$688 AUD
$483 USD
View
A
Retailer 5
-
$696 AUD
$489 USD
View
A
Retailer 6
-
$696 AUD
$489 USD
View
A
Retailer 7
-
$717 AUD
$504 USD
View
A
Retailer 8
-
$784 AUD
$551 USD
View
A
Retailer 9
-
$852 AUD
€570 EUR
View
B+
Retailer 10
-
$1,056 AUD
£584 GBP
View
B
Retailer 11
-
$1,184 AUD
£655 GBP
View
Most Expensive
B
NZ Jewellers
76d5261c-3c39-49b9-a8a9-1de0468bfdf9 · Oct 26
$1,956 AUD
$1,374 USD
View
11 more retailers have this diamond
Prices start from $510 AUDSave up to $1,446 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
$510 AUD