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Round|Natural|GIA

0.42ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1503649346

Certificate GIA 1503649346

Diamond specifications and retailer prices

From £295 GBP
₹37,391 INR
As of October 29, 2026
Save £934 GBP (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,229 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1503649346. Listed at 21 retailers as of October 26, 2026, with prices from £295 to £1,229, a £934 spread on the same certified stone. NZ Jewellers lists it at £1,229. 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
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1503649346
Dimensions4.77 × 4.81 × 2.97 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Feather
Top View
4.77 mm4.81 mm0.42 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1503649346
Side View
Table 59.0%Crown 34.5°Girdle: STK-STKPavilion 41.2°Culet: NoneDepth 61.9%

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: £1,229 GBP|Low: £294 GBP|High: £1,265 GBP|Avg: £563 GBP|-2.9%
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 11£295 GBP
Retailer 3£336 GBP
Retailer 6£396 GBP
Retailer 18£399 GBP
Retailer 17£423 GBP
Retailer 7£426 GBP
Retailer 10£426 GBP
Retailer 4£452 GBP
Retailer 2£492 GBP
Retailer 8£494 GBP
Retailer 9£523 GBP
Retailer 15£544 GBP
Retailer 12£544 GBP
Retailer 16£553 GBP
Retailer 5£612 GBP
Retailer 13£805 GBP
Retailer 14£918 GBP
NZ Jewellers£1,229 GBP

16 data points across 18 retailers

21 retailers£295 GBP to £1,229 GBP

A
Cheapest Retailer
-
£295 GBP
₹37,391 INR
A
Retailer 2
-
£336 GBP
HK$3,500 HKD
View
A
Retailer 3
-
£383 GBP
$510 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
£396 GBP
$527 USD
View
A
Retailer 5
-
£399 GBP
A$818 AUD
View
A
Retailer 6
-
£423 GBP
$563 USD
View
A
Retailer 7
-
£426 GBP
$567 USD
View
A
Retailer 8
-
£426 GBP
$567 USD
View
A
Retailer 9
-
£452 GBP
$602 USD
View
A
Retailer 10
-
£492 GBP
View
A
Retailer 11
-
£494 GBP
$658 USD
View
B+
Retailer 12
-
£523 GBP
$696 USD
View
B+
Retailer 13
-
£544 GBP
€690 EUR
View
B+
Retailer 14
-
£544 GBP
$725 USD
View
B+
Retailer 15
-
£553 GBP
$737 USD
View
B+
Retailer 16
-
£612 GBP
ZAR 13,171 ZAR
View
B+
Retailer 17
-
£640 GBP
A$1,310 AUD
View
Price last confirmed 25 days ago
B
Retailer 18
-
£805 GBP
View
B
Retailer 19
-
£918 GBP
View
B
Retailer 20
-
£957 GBP
View
Most Expensive
B
NZ Jewellers
adf24465-3988-437f-8239-e8af7fea298f · Oct 26
£1,229 GBP
$1,636 USD
View
20 more retailers have this diamond
Prices start from £295 GBPSave up to £934 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
£295 GBP