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0.42ct E SI2 Round Natural Diamond

EX • E/SI2 • IGI 810633260

Shape and cutting style on the report: Round brilliant

Certificate IGI 810633260

Diamond specifications and retailer prices

From £180 GBP
₹22,798 INR
As of October 29, 2026
Save £778 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £958 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 IGI 810633260. Listed at 11 retailers as of October 26, 2026, with prices from £180 to £958, a £778 spread on the same certified stone. NZ Jewellers lists it at £958. 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
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 810633260
Dimensions4.77 × 4.80 × 2.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
4.77 mm4.80 mm0.42 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 810633260
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.9%

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: £958 GBP|Low: £179 GBP|High: £1,021 GBP|Avg: £447 GBP|-6.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 2£180 GBP
Retailer 10£250 GBP
Retailer 6£270 GBP
Retailer 11£279 GBP
Retailer 3£291 GBP
Retailer 9£335 GBP
Retailer 7£336 GBP
Retailer 4£345 GBP
Retailer 5£416 GBP
Retailer 12£578 GBP
Retailer 8£768 GBP
NZ Jewellers£958 GBP

42 data points across 12 retailers

11 retailers£180 GBP to £958 GBP

A
Cheapest Retailer
-
£180 GBP
₹22,798 INR
A
Retailer 2
-
£250 GBP
$333 USD
View
A
Retailer 3
-
£270 GBP
SGD 486 SGD
View
A
Retailer 4
-
£279 GBP
$371 USD
View
A
Retailer 5
-
£313 GBP
$417 USD
View
Price last confirmed 74 days ago
A
Retailer 6
-
£335 GBP
$446 USD
View
A
Retailer 7
-
£336 GBP
$448 USD
View
A
Retailer 8
-
£416 GBP
€528 EUR
View
B+
Retailer 9
-
£578 GBP
View
B
Retailer 10
-
£768 GBP
CA$1,420 CAD
View
Most Expensive
B
NZ Jewellers
5f3210d6-22f8-4fc0-b3c9-4de005b7869d · Oct 26
£958 GBP
$1,276 USD
View
10 more retailers have this diamond
Prices start from £180 GBPSave up to £778 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
£180 GBP