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Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5496542675

Certificate GIA 5496542675

Diamond specifications and retailer prices

From £2,408 GBP
As of November 4, 2026
Save £3,314 GBP (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,722 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5496542675. Listed at 19 retailers as of November 4, 2026, with prices from £2,408 to £5,722, a £3,314 spread on the same certified stone. Diamond Quarter lists it at £5,722. 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5496542675
Dimensions6.49 × 6.47 × 4.00 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.49 mm6.47 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5496542675
Side View
Table 59.0%Crown 34.5°Girdle: ThickPavilion 41.6°Culet: NoneDepth 61.7%

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: Nov 4
Current: £3,442 GBP|Low: £2,170 GBP|High: £4,773 GBP|Avg: £3,112 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5£2,534 GBP
Retailer 9£2,540 GBP
Retailer 6£2,603 GBP
Retailer 8£2,820 GBP
Retailer 3£2,901 GBP
Retailer 7£3,021 GBP
Retailer 2£3,280 GBP
Retailer 1£3,442 GBP
Retailer 4£4,703 GBP

40 data points across 9 retailers

19 retailers£2,408 GBP to £5,722 GBP

A
Cheapest Retailer
-
£2,408 GBP
B+
Retailer 2
-
£2,504 GBP
View
A
Retailer 3
-
£2,534 GBP
View
B+
Retailer 4
-
£2,540 GBP
View
B+
Retailer 5
-
£2,603 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,701 GBP
View
Retailer 7
-
£2,820 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£2,820 GBP
View
Price last confirmed 36 days ago
B+
Retailer 9
-
£2,901 GBP
View
Retailer 10
-
£2,929 GBP
View
Price last confirmed 38 days ago
B+
Retailer 11
-
£2,929 GBP
View
Retailer 12
-
£3,021 GBP
View
Price last confirmed 29 days ago
Retailer 13
-
£3,254 GBP
View
Price last confirmed 38 days ago
B+
Retailer 14
-
£3,280 GBP
View
B+
Retailer 15
-
£3,442 GBP
View
B
Retailer 16
-
£4,703 GBP
View
Retailer 17
-
£4,913 GBP
View
Price last confirmed 39 days ago
B
Retailer 18
-
£4,913 GBP
View
Most Expensive
B
Diamond Quarter
1.03SI1E5475F33DN · Nov 5
£5,722 GBP
View
18 more retailers have this diamond
Prices start from £2,408 GBPSave up to £3,314 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
1.03ct Round
£2,408 GBP