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1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6562078809

Certificate GIA 6562078809

Diamond specifications and retailer prices

From £1,845 GBP
As of November 6, 2026
Save £2,329 GBP (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,174 GBP at MOH London · As of November 4, 2026
View at MOH London

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 6562078809. Listed at 7 retailers as of November 4, 2026, with prices from £1,845 to £4,174, a £2,329 spread on the same certified stone. MOH London lists it at £4,174. 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
FluorescenceNone
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562078809
Dimensions6.47 × 6.52 × 4.04 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Needle
Top View
6.47 mm6.52 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562078809
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.1%

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 6
Current: £4,174 GBP|Low: £1,845 GBP|High: £4,354 GBP|Avg: £2,670 GBP|-4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6£1,845 GBP
Retailer 5£2,137 GBP
Retailer 7£2,255 GBP
Retailer 3£2,394 GBP
Retailer 4£2,569 GBP
Retailer 2£2,844 GBP
MOH London£4,174 GBP

24 data points across 7 retailers

7 retailers£1,845 GBP to £4,174 GBP

A
Cheapest Retailer
-
£1,845 GBP
A
Retailer 2
-
£2,137 GBP
View
B+
Retailer 3
-
£2,255 GBP
View
B+
Retailer 4
-
£2,394 GBP
View
B+
Retailer 5
-
£2,569 GBP
View
B+
Retailer 6
-
£2,844 GBP
View
Most Expensive
B
MOH London
C91420AD3 · Nov 4
£4,174 GBP
View
6 more retailers have this diamond
Prices start from £1,845 GBPSave up to £2,329 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
1.05ct Round
£1,845 GBP