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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6472035678

Certificate GIA 6472035678

Diamond specifications and retailer prices

From £2,936 GBP
As of November 6, 2026
Save £3,538 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £8,622 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6472035678. Listed at 15 retailers as of November 5, 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

1.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6472035678
Dimensions6.49 × 6.47 × 4.07 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.49 mm6.47 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6472035678
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.9%

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: £3,635 GBP|Low: £2,936 GBP|High: £5,989 GBP|Avg: £3,912 GBP|+1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£2,936 GBP
Retailer 5£3,022 GBP
Retailer 7£3,186 GBP
Retailer 9£3,366 GBP
Retailer 1£3,635 GBP
Retailer 6£3,745 GBP
Retailer 3£4,172 GBP
Retailer 2£4,533 GBP
Retailer 4£5,902 GBP

45 data points across 9 retailers

15 retailers£2,936 GBP to £6,474 GBP

B+
Cheapest Retailer
-
£2,936 GBP
B+
Retailer 2
-
£3,022 GBP
View
B+
Retailer 3
-
£3,186 GBP
View
Retailer 4
-
£3,366 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£3,366 GBP
View
B
Retailer 6
-
£3,366 GBP
View
B
Retailer 7
-
£3,635 GBP
View
Retailer 8
-
£3,745 GBP
View
Price last confirmed 28 days ago
B
Retailer 9
-
£3,884 GBP
View
Retailer 10
-
£4,102 GBP
View
Price last confirmed 14 days ago
B
Retailer 11
-
£4,172 GBP
View
B
Retailer 12
-
£4,533 GBP
View
B
Retailer 13
-
£5,902 GBP
View
B
Retailer 14
-
£6,474 GBP
View
Most Expensive
Diamond Quarter
1.05SI1F647899CDN · Nov 5
£8,622 GBP
View
Price under review
14 more retailers have this diamond
Prices start from £2,936 GBPSave up to £3,538 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+
1.05ct Round
£2,936 GBP