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Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1508586417

Certificate GIA 1508586417

Diamond specifications and retailer prices

From $810 NZD
₹43,305 INR
As of October 29, 2026
Save $2,641 NZD (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,451 NZD 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1508586417. Listed at 22 retailers as of October 26, 2026, with prices from $810 to $3,451, a $2,641 spread on the same certified stone. NZ Jewellers lists it at $3,451. 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
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1508586417
Dimensions4.80 × 4.82 × 2.96 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
4.80 mm4.82 mm0.42 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1508586417
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.6%

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: $3,451 NZD|Low: $804 NZD|High: $3,451 NZD|Avg: $1,902 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 4$810 NZD
Retailer 8$1,184 NZD
Retailer 3$1,343 NZD
Retailer 2$1,484 NZD
Retailer 9$1,655 NZD
Retailer 6$1,703 NZD
Retailer 10$2,254 NZD
Retailer 7$2,546 NZD
Retailer 5$2,600 NZD
NZ Jewellers$3,451 NZD

31 data points across 10 retailers

22 retailers$810 NZD to $3,451 NZD

A
Cheapest Retailer
-
$810 NZD
₹43,305 INR
A
Retailer 2
-
$1,063 NZD
A$919 AUD
View
Retailer 3
-
$1,100 NZD
$618 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$1,100 NZD
$618 USD
View
B+
Retailer 5
-
$1,146 NZD
SGD 870 SGD
View
B+
Retailer 6
-
$1,184 NZD
$665 USD
View
B+
Retailer 7
-
$1,186 NZD
$666 USD
View
B+
Retailer 8
-
$1,186 NZD
$666 USD
View
Retailer 9
-
$1,269 NZD
$713 USD
View
Price last confirmed 36 days ago
B+
Retailer 10
-
$1,335 NZD
$750 USD
View
B+
Retailer 11
-
$1,343 NZD
£594 GBP
View
B+
Retailer 12
-
$1,391 NZD
$781 USD
View
B+
Retailer 13
-
$1,484 NZD
€794 EUR
View
B+
Retailer 14
-
$1,519 NZD
$853 USD
View
Retailer 15
-
$1,655 NZD
A$1,430 AUD
View
Price last confirmed 25 days ago
B+
Retailer 16
-
$1,703 NZD
ZAR 15,454 ZAR
View
B
Retailer 17
-
$1,993 NZD
£881 GBP
View
Retailer 18
-
$2,254 NZD
£997 GBP
View
Price last confirmed 30 days ago
B
Retailer 19
-
$2,546 NZD
£1,126 GBP
View
B
Retailer 20
-
$2,600 NZD
£1,150 GBP
View
Retailer 21
-
$3,451 NZD
$1,938 USD
View
Price last confirmed 35 days ago
Most Expensive
B
NZ Jewellers
3385e125-9547-4617-846b-5ea2a2056a89 · Oct 26
$3,451 NZD
$1,938 USD
View
21 more retailers have this diamond
Prices start from $810 NZDSave up to $2,641 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
$810 NZD