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Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 7551576058

Certificate GIA 7551576058

Diamond specifications and retailer prices

From $520 AUD
₹34,816 INR
As of October 29, 2026
Save $1,103 AUD (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,736 AUD at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551576058. Listed at 18 retailers as of October 29, 2026, with a 212% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7551576058
Dimensions4.84 × 4.83 × 2.93 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Knot
Top View
4.84 mm4.83 mm0.42 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551576058
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $870 AUD|Low: $519 AUD|High: $1,658 AUD|Avg: $929 AUD|+1.6%
Retailer 1
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
October 30, 2026
Retailer 7$520 AUD
Retailer 4$601 AUD
Retailer 14$744 AUD
Retailer 13$752 AUD
Retailer 9$753 AUD
Retailer 1$870 AUD
Retailer 3$885 AUD
Retailer 5$947 AUD
Retailer 11$965 AUD
Retailer 12$984 AUD
Retailer 8$989 AUD
Retailer 6$1,073 AUD
Retailer 2$1,080 AUD
Retailer 10$1,623 AUD

29 data points across 14 retailers

18 retailers$520 AUD to $1,623 AUD

A
Cheapest Retailer
-
$520 AUD
₹34,816 INR
A
Retailer 2
-
$601 AUD
HK$3,300 HKD
View
Retailer 3
-
$713 AUD
$501 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
$744 AUD
SGD 706 SGD
View
A
Retailer 5
-
$752 AUD
$528 USD
View
A
Retailer 6
-
$753 AUD
$529 USD
View
Retailer 7
-
$769 AUD
$540 USD
View
Price last confirmed 30 days ago
Retailer 8
-
$824 AUD
$579 USD
View
Price last confirmed 30 days ago
A
Retailer 9
-
$870 AUD
£481 GBP
View
A
Retailer 10
-
$885 AUD
$622 USD
View
A
Retailer 11
-
$947 AUD
$665 USD
View
B+
Retailer 12
-
$965 AUD
€646 EUR
View
B+
Retailer 13
-
$984 AUD
$691 USD
View
B+
Retailer 14
-
$989 AUD
$695 USD
View
Retailer 15
-
$1,073 AUD
View
Price last confirmed 26 days ago
B+
Retailer 16
-
$1,080 AUD
ZAR 12,257 ZAR
View
B
Retailer 17
-
$1,623 AUD
£898 GBP
View
Most Expensive
NZ Jewellers
7a0a9533-2184-4353-84bd-0a4faeffbd68 · Sep 28
$2,736 AUD
$1,922 USD
View
Price last confirmed 31 days ago
17 more retailers have this diamond
Prices start from $520 AUDSave up to $1,103 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
$520 AUD