Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1508586417

Certificate GIA 1508586417

Diamond specifications and retailer prices

From $455 USD
₹43,305 INR
As of October 29, 2026
Save $1,483 USD (77%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,938 USD 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 $455 to $1,938, a $1,483 spread on the same certified stone. NZ Jewellers lists it at $1,938. 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
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: $1,938 USD|Low: $452 USD|High: $1,938 USD|Avg: $1,069 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3$455 USD
Retailer 8$665 USD
Retailer 2$754 USD
Retailer 4$826 USD
Retailer 9$929 USD
Retailer 6$957 USD
Retailer 10$1,266 USD
Retailer 7$1,430 USD
Retailer 5$1,461 USD
NZ Jewellers$1,938 USD

31 data points across 10 retailers

22 retailers$455 USD to $1,938 USD

A
Cheapest Retailer
-
$455 USD
₹43,305 INR
A
Retailer 2
-
$597 USD
A$919 AUD
View
A
Retailer 3
-
$618 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$618 USD
View
B+
Retailer 5
-
$644 USD
SGD 870 SGD
View
B+
Retailer 6
-
$665 USD
View
B+
Retailer 7
-
$666 USD
View
B+
Retailer 8
-
$666 USD
View
B+
Retailer 9
-
$713 USD
View
Price last confirmed 36 days ago
B+
Retailer 10
-
$750 USD
View
B+
Retailer 11
-
$754 USD
£594 GBP
View
B+
Retailer 12
-
$781 USD
View
B+
Retailer 13
-
$826 USD
€787 EUR
View
B+
Retailer 14
-
$853 USD
View
B+
Retailer 15
-
$929 USD
A$1,430 AUD
View
Price last confirmed 24 days ago
B+
Retailer 16
-
$957 USD
ZAR 15,454 ZAR
View
B
Retailer 17
-
$1,119 USD
£881 GBP
View
B
Retailer 18
-
$1,266 USD
£997 GBP
View
Price last confirmed 29 days ago
B
Retailer 19
-
$1,430 USD
£1,126 GBP
View
B
Retailer 20
-
$1,461 USD
£1,150 GBP
View
B
Retailer 21
-
$1,938 USD
View
Price last confirmed 35 days ago
Most Expensive
B
NZ Jewellers
3385e125-9547-4617-846b-5ea2a2056a89 · Oct 26
$1,938 USD
View
21 more retailers have this diamond
Prices start from $455 USDSave up to $1,483 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
$455 USD