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Round|Natural|GIA

1.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2547648823

Certificate GIA 2547648823

Diamond specifications and retailer prices

From £1,911 GBP
As of November 4, 2026
Save £2,284 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,559 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

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 2547648823. Listed at 17 retailers as of November 4, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2547648823
Dimensions6.44 × 6.46 × 4.03 mm
L/W Ratio1.00
Star length50%
Top View
6.44 mm6.46 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547648823
Side View
Table 56.0%Crown 35.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

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: £2,662 GBP|Low: £1,911 GBP|High: £4,429 GBP|Avg: £2,788 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4£1,911 GBP
Retailer 8£1,920 GBP
Retailer 3£2,233 GBP
Retailer 2£2,321 GBP
Retailer 6£2,405 GBP
Retailer 12£2,430 GBP
Retailer 5£2,586 GBP
Retailer 11£2,622 GBP
Retailer 1£2,662 GBP
Retailer 10£2,804 GBP
Retailer 7£3,069 GBP
Retailer 9£4,195 GBP

30 data points across 12 retailers

17 retailers£1,911 GBP to £4,195 GBP

A
Cheapest Retailer
-
£1,911 GBP
A
Retailer 2
-
£1,920 GBP
View
A
Retailer 3
-
£2,233 GBP
View
A
Retailer 4
-
£2,321 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,405 GBP
View
B+
Retailer 6
-
£2,430 GBP
View
B+
Retailer 7
-
£2,586 GBP
View
Retailer 8
-
£2,617 GBP
View
Price last confirmed 17 days ago
B+
Retailer 9
-
£2,622 GBP
View
B+
Retailer 10
-
£2,662 GBP
View
Retailer 11
-
£2,717 GBP
View
Price last confirmed 22 days ago
Retailer 12
-
£2,795 GBP
View
Price last confirmed 29 days ago
B+
Retailer 13
-
£2,804 GBP
View
Retailer 14
-
£3,020 GBP
View
Price last confirmed 19 days ago
B+
Retailer 15
-
£3,069 GBP
View
B
Retailer 16
-
£4,195 GBP
View
Most Expensive
NZ Jewellers
36454d45-126b-4b14-b04c-79625ceba885 · Oct 20
£4,559 GBP
$6,136 USD
View
Price last confirmed 16 days ago
16 more retailers have this diamond
Prices start from £1,911 GBPSave up to £2,284 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
£1,911 GBP