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Round|Natural|GIA

1.05ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6562453303

Certificate GIA 6562453303

Diamond specifications and retailer prices

From £1,898 GBP
As of November 6, 2026
Save £2,028 GBP (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,102 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

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 6562453303. Listed at 18 retailers as of November 4, 2026, with a 107% 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 angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6562453303
Dimensions6.52 × 6.47 × 4.00 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.52 mm6.47 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6562453303
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.6%

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: £4,102 GBP|Low: £1,898 GBP|High: £4,488 GBP|Avg: £2,581 GBP
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 9£1,898 GBP
Retailer 7£2,108 GBP
Retailer 5£2,111 GBP
Retailer 8£2,142 GBP
Retailer 10£2,173 GBP
Retailer 2£2,253 GBP
Retailer 3£2,355 GBP
Retailer 14£2,423 GBP
Retailer 18£2,445 GBP
Retailer 17£2,502 GBP
Retailer 13£2,569 GBP
Retailer 6£2,634 GBP
Retailer 16£2,702 GBP
Retailer 11£2,704 GBP
Retailer 4£2,717 GBP
Retailer 12£2,874 GBP
Retailer 15£3,927 GBP
NZ Jewellers£4,102 GBP

26 data points across 18 retailers

18 retailers£1,898 GBP to £3,927 GBP

A
Cheapest Retailer
-
£1,898 GBP
A
Retailer 2
-
£2,108 GBP
View
A
Retailer 3
-
£2,111 GBP
View
A
Retailer 4
-
£2,142 GBP
View
B+
Retailer 5
-
£2,173 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,253 GBP
View
Retailer 7
-
£2,355 GBP
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£2,423 GBP
View
Retailer 9
-
£2,445 GBP
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£2,502 GBP
View
B+
Retailer 11
-
£2,569 GBP
View
B+
Retailer 12
-
£2,634 GBP
View
B+
Retailer 13
-
£2,702 GBP
View
B+
Retailer 14
-
£2,704 GBP
View
Retailer 15
-
£2,717 GBP
View
Price last confirmed 14 days ago
B+
Retailer 16
-
£2,874 GBP
View
B
Retailer 17
-
£3,927 GBP
View
Most Expensive
NZ Jewellers
f19ef100-26c7-4cd5-b84d-7b28f8117454 · Oct 23
£4,102 GBP
$5,491 USD
View
Price last confirmed 14 days ago
17 more retailers have this diamond
Prices start from £1,898 GBPSave up to £2,028 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
£1,898 GBP