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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 $651 NZD
₹34,816 INR
As of October 29, 2026
Save $1,380 NZD (68%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,422 NZD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,108 NZD|Low: $650 NZD|High: $2,074 NZD|Avg: $1,162 NZD|-1.1%
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 8$651 NZD
Retailer 4$752 NZD
Retailer 2$930 NZD
Retailer 14$940 NZD
Retailer 10$942 NZD
Retailer 7$1,088 NZD
Retailer 1$1,108 NZD
Retailer 5$1,184 NZD
Retailer 12$1,208 NZD
Retailer 13$1,231 NZD
Retailer 9$1,237 NZD
Retailer 6$1,342 NZD
Retailer 3$1,351 NZD
Retailer 11$2,031 NZD

29 data points across 14 retailers

18 retailers$651 NZD to $2,031 NZD

A
Cheapest Retailer
-
$651 NZD
₹34,816 INR
A
Retailer 2
-
$752 NZD
HK$3,300 HKD
View
Retailer 3
-
$892 NZD
$501 USD
View
Price last confirmed 28 days ago
A
Retailer 4
-
$930 NZD
SGD 706 SGD
View
A
Retailer 5
-
$940 NZD
$528 USD
View
A
Retailer 6
-
$942 NZD
$529 USD
View
Retailer 7
-
$961 NZD
$540 USD
View
Price last confirmed 31 days ago
Retailer 8
-
$1,031 NZD
$579 USD
View
Price last confirmed 30 days ago
A
Retailer 9
-
$1,088 NZD
£481 GBP
View
A
Retailer 10
-
$1,108 NZD
$623 USD
View
A
Retailer 11
-
$1,184 NZD
$665 USD
View
B+
Retailer 12
-
$1,208 NZD
€646 EUR
View
B+
Retailer 13
-
$1,231 NZD
$691 USD
View
B+
Retailer 14
-
$1,237 NZD
$695 USD
View
Retailer 15
-
$1,342 NZD
A$1,160 AUD
View
Price last confirmed 26 days ago
B+
Retailer 16
-
$1,351 NZD
ZAR 12,257 ZAR
View
B
Retailer 17
-
$2,031 NZD
£898 GBP
View
Most Expensive
NZ Jewellers
7a0a9533-2184-4353-84bd-0a4faeffbd68 · Sep 28
$3,422 NZD
$1,922 USD
View
Price last confirmed 32 days ago
17 more retailers have this diamond
Prices start from $651 NZDSave up to $1,380 NZD

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
$651 NZD