Round|Natural|IGI

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 $358 USD
As of October 28, 2026
Save $1,016 USD (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,374 USD at NZ Jewellers · As of October 30, 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 28, 2026, with prices from $358 to $1,374, a $1,016 spread on the same certified stone. NZ Jewellers lists it at $1,374. 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
Color
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: $1,374 USD|Low: $358 USD|High: $1,374 USD|Avg: $609 USD
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 30, 2026
Retailer 11$358 USD
Retailer 8$386 USD
Retailer 7$400 USD
Retailer 12$483 USD
Retailer 9$489 USD
Retailer 10$489 USD
Retailer 3$504 USD
Retailer 4$551 USD
Retailer 5$599 USD
Retailer 2$740 USD
Retailer 6$832 USD
NZ Jewellers$1,374 USD

24 data points across 12 retailers

12 retailers$358 USD to $1,374 USD

A
Cheapest Retailer
-
$358 USD
A
Retailer 2
-
$386 USD
View
A
Retailer 3
-
$400 USD
View
A
Retailer 4
-
$483 USD
View
A
Retailer 5
-
$489 USD
View
A
Retailer 6
-
$489 USD
View
A
Retailer 7
-
$504 USD
View
A
Retailer 8
-
$551 USD
View
A
Retailer 9
-
$599 USD
€570 EUR
View
B+
Retailer 10
-
$740 USD
£582 GBP
View
B
Retailer 11
-
$832 USD
£655 GBP
View
Most Expensive
B
NZ Jewellers
76d5261c-3c39-49b9-a8a9-1de0468bfdf9 · Oct 30
$1,374 USD
View
11 more retailers have this diamond
Prices start from $358 USDSave up to $1,016 USD

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
$358 USD