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Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 7566360755

Certificate GIA 7566360755

Diamond specifications and retailer prices

From $527 AUD
₹35,293 INR
As of October 29, 2026
Save $1,116 AUD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,663 AUD at NZ Jewellers · As of October 8, 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 7566360755. Listed at 17 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
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7566360755
Dimensions4.74 × 4.78 × 2.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Crystal
Top View
4.74 mm4.78 mm0.42 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566360755
Side View
Table 58.0%Crown 33.5°Girdle: THN-STKPavilion 41.6°Culet: NoneDepth 62.8%

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: $881 AUD|Low: $510 AUD|High: $1,719 AUD|Avg: $945 AUD|+1.2%
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
Retailer 15
October 29, 2026
Retailer 8$527 AUD
Retailer 5$619 AUD
Retailer 7$739 AUD
Retailer 14$755 AUD
Retailer 13$760 AUD
Retailer 3$763 AUD
Retailer 4$763 AUD
Retailer 1$881 AUD
Retailer 2$895 AUD
Retailer 12$977 AUD
Retailer 9$996 AUD
Retailer 6$1,093 AUD
Retailer 15$1,096 AUD
Retailer 10$1,441 AUD
Retailer 11$1,643 AUD

28 data points across 15 retailers

17 retailers$527 AUD to $1,643 AUD

A
Cheapest Retailer
-
$527 AUD
₹35,293 INR
A
Retailer 2
-
$619 AUD
HK$3,400 HKD
View
Retailer 3
-
$695 AUD
$488 USD
View
Price last confirmed 21 days ago
A
Retailer 4
-
$755 AUD
SGD 717 SGD
View
A
Retailer 5
-
$760 AUD
$534 USD
View
A
Retailer 6
-
$763 AUD
$536 USD
View
A
Retailer 7
-
$763 AUD
$536 USD
View
Retailer 8
-
$801 AUD
$563 USD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$881 AUD
£487 GBP
View
A
Retailer 10
-
$895 AUD
$629 USD
View
B+
Retailer 11
-
$977 AUD
€654 EUR
View
B+
Retailer 12
-
$996 AUD
$700 USD
View
Retailer 13
-
$1,093 AUD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
$1,096 AUD
ZAR 12,434 ZAR
View
B+
Retailer 15
-
$1,441 AUD
£797 GBP
View
B
Retailer 16
-
$1,643 AUD
£909 GBP
View
Most Expensive
NZ Jewellers
508b233b-45c5-49a1-994a-b93806e21dd0 · Oct 8
$2,663 AUD
$1,871 USD
View
Price last confirmed 21 days ago
16 more retailers have this diamond
Prices start from $527 AUDSave up to $1,116 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
$527 AUD