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Round|Natural|GIA

0.42ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2494386639

Certificate GIA 2494386639

Diamond specifications and retailer prices

From £396 GBP
$527 USD
As of October 29, 2026
Save £916 GBP (70%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,312 GBP 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2494386639. Listed at 17 retailers as of October 26, 2026, with prices from £396 to £1,312, a £916 spread on the same certified stone. NZ Jewellers lists it at £1,312. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2494386639
Dimensions4.85 × 4.81 × 2.97 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
4.85 mm4.81 mm0.42 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2494386639
Side View
Table 59.0%Crown 32.5°Girdle: ThickPavilion 41.8°Culet: NoneDepth 61.4%

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: £1,312 GBP|Low: £386 GBP|High: £1,322 GBP|Avg: £561 GBP|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9£396 GBP
Retailer 5£421 GBP
Retailer 2£451 GBP
Retailer 10£458 GBP
Retailer 7£517 GBP
Retailer 8£519 GBP
Retailer 4£523 GBP
Retailer 6£618 GBP
Retailer 3£971 GBP
NZ Jewellers£1,312 GBP

44 data points across 10 retailers

17 retailers£396 GBP to £1,312 GBP

A
Cheapest Retailer
-
£396 GBP
$527 USD
A
Retailer 2
-
£408 GBP
$543 USD
View
Price last confirmed 28 days ago
A
Retailer 3
-
£411 GBP
$547 USD
View
Price last confirmed 35 days ago
A
Retailer 4
-
£418 GBP
$557 USD
View
A
Retailer 5
-
£421 GBP
$560 USD
View
A
Retailer 6
-
£439 GBP
$585 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
£451 GBP
$600 USD
View
B+
Retailer 8
-
£471 GBP
$627 USD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
£491 GBP
$654 USD
View
Price last confirmed 36 days ago
B+
Retailer 10
-
£517 GBP
$689 USD
View
B+
Retailer 11
-
£519 GBP
$691 USD
View
B+
Retailer 12
-
£523 GBP
View
B+
Retailer 13
-
£618 GBP
€784 EUR
View
B
Retailer 14
-
£935 GBP
View
B
Retailer 15
-
£971 GBP
View
B
Retailer 16
-
£1,287 GBP
$1,714 USD
View
Price last confirmed 35 days ago
Most Expensive
B
NZ Jewellers
9e63544f-79c5-4f44-9fb6-1a41bb2d823d · Oct 26
£1,312 GBP
$1,747 USD
View
16 more retailers have this diamond
Prices start from £396 GBPSave up to £916 GBP

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
£396 GBP