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1.03ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 7491801551

Shape and cutting style on the report: Round

Certificate GIA 7491801551

Diamond specifications and retailer prices

From £2,202 GBP
As of November 6, 2026
Save £3,156 GBP (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,359 GBP at Diamond Quarter · As of November 6, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7491801551. Listed at 15 retailers as of November 6, 2026, with prices from £2,202 to £5,359, a £3,156 spread on the same certified stone. Diamond Quarter lists it at £5,359. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7491801551
Dimensions6.49 × 6.46 × 4.02 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Key to symbols
Cloud, Crystal, Needle
Top View
6.49 mm6.46 mm1.03 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7491801551
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,817 GBP|Low: £1,908 GBP|High: £4,771 GBP|Avg: £3,058 GBP|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4£2,170 GBP
Retailer 8£2,202 GBP
Retailer 5£2,290 GBP
Retailer 9£2,480 GBP
Retailer 6£2,576 GBP
Retailer 1£2,817 GBP
Retailer 2£3,185 GBP
Retailer 3£4,567 GBP
Retailer 7£4,771 GBP

40 data points across 9 retailers

15 retailers£2,202 GBP to £5,359 GBP

B+
Cheapest Retailer
-
£2,202 GBP
B+
Retailer 2
-
£2,290 GBP
View
Final sale: no returns
Retailer 3
-
£2,480 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£2,480 GBP
View
B+
Retailer 5
-
£2,576 GBP
View
B+
Retailer 6
-
£2,817 GBP
View
B+
Retailer 7
-
£2,817 GBP
View
B+
Retailer 8
-
£2,817 GBP
View
B+
Retailer 9
-
£2,862 GBP
View
B+
Retailer 10
-
£2,906 GBP
View
Retailer 11
-
£3,101 GBP
View
Price last confirmed 14 days ago
B+
Retailer 12
-
£3,185 GBP
View
B
Retailer 13
-
£4,567 GBP
View
B
Retailer 14
-
£4,771 GBP
View
Most Expensive
B
Diamond Quarter
1.03SI2F74518A09N · Nov 6
£5,359 GBP
View
14 more retailers have this diamond
Prices start from £2,202 GBPSave up to £3,156 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.

B+
1.03ct Round
£2,202 GBP