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Round|Natural|GIA

1.05ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2235458854

Certificate GIA 2235458854

Diamond specifications and retailer prices

From £2,194 GBP
As of November 6, 2026
Save £2,364 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,557 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2235458854. Listed at 10 retailers as of November 5, 2026, with prices from £2,194 to £4,557, a £2,364 spread on the same certified stone. Diamond Quarter lists it at £4,557. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2235458854
Dimensions6.55 × 6.52 × 4.04 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Top View
6.55 mm6.52 mm1.05 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2235458854
Side View
Table 59.0%Crown 36°Girdle: THN-MEDPavilion 41.2°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 6
Current: £3,104 GBP|Low: £2,077 GBP|High: £3,547 GBP|Avg: £2,739 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 11£2,077 GBP
Retailer 8£2,194 GBP
Retailer 7£2,219 GBP
Retailer 13£2,229 GBP
Retailer 6£2,397 GBP
Retailer 9£2,621 GBP
Retailer 10£2,787 GBP
Retailer 3£2,906 GBP
Retailer 12£2,906 GBP
Retailer 14£2,957 GBP
Retailer 2£3,003 GBP
Retailer 1£3,104 GBP
Retailer 4£3,374 GBP
Retailer 5£3,547 GBP

21 data points across 14 retailers

10 retailers£2,194 GBP to £4,557 GBP

B+
Cheapest Retailer
-
£2,194 GBP
A
Retailer 2
-
£2,219 GBP
View
B+
Retailer 3
-
£2,229 GBP
View
B+
Retailer 4
-
£2,621 GBP
View
B
Retailer 5
-
£2,787 GBP
View
B+
Retailer 6
-
£2,906 GBP
View
B+
Retailer 7
-
£2,906 GBP
View
B+
Retailer 8
-
£3,003 GBP
View
B+
Retailer 9
-
£3,104 GBP
View
Most Expensive
B
Diamond Quarter
1.05SI2F225422B5N · Nov 5
£4,557 GBP
View
9 more retailers have this diamond
Prices start from £2,194 GBPSave up to £2,364 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
£2,194 GBP