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Round|Natural|GIA

1.05ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2447174807

Certificate GIA 2447174807

Diamond specifications and retailer prices

From £1,780 GBP
As of October 31, 2026
Save £2,477 GBP (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,257 GBP at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2447174807. Listed at 18 retailers as of October 31, 2026, with prices from £1,780 to £4,257, a £2,477 spread on the same certified stone. NZ Jewellers lists it at £4,257. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2447174807
Dimensions6.49 × 6.45 × 4.07 mm
L/W Ratio1.01
Top View
6.49 mm6.45 mm1.05 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2447174807
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

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: Oct 31
Current: £2,495 GBP|Low: £1,708 GBP|High: £4,135 GBP|Avg: £2,469 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5£1,780 GBP
Retailer 6£1,798 GBP
Retailer 7£2,205 GBP
Retailer 8£2,255 GBP
Retailer 1£2,495 GBP
Retailer 2£2,498 GBP
Retailer 9£2,537 GBP
Retailer 4£2,597 GBP
Retailer 3£4,075 GBP

44 data points across 9 retailers

18 retailers£1,780 GBP to £4,257 GBP

A
Cheapest Retailer
-
£1,780 GBP
A
Retailer 2
-
£1,798 GBP
View
A
Retailer 3
-
£2,087 GBP
View
B+
Retailer 4
-
£2,205 GBP
View
B+
Retailer 5
-
£2,255 GBP
View
Final sale: no returns
Retailer 6
-
£2,298 GBP
View
Price last confirmed 109 days ago
Retailer 7
-
£2,444 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£2,444 GBP
View
B+
Retailer 9
-
£2,495 GBP
View
B+
Retailer 10
-
£2,498 GBP
View
B+
Retailer 11
-
£2,537 GBP
View
B+
Retailer 12
-
£2,551 GBP
View
B+
Retailer 13
-
£2,597 GBP
View
B
Retailer 14
-
£2,820 GBP
View
B
Retailer 15
-
£3,307 GBP
View
B
Retailer 16
-
£4,075 GBP
View
B
Retailer 17
-
£4,087 GBP
View
Most Expensive
B
NZ Jewellers
09ea47c9-8c03-44fd-92af-8f7f4df697b7 · Nov 5
£4,257 GBP
$5,698 USD
View
17 more retailers have this diamond
Prices start from £1,780 GBPSave up to £2,477 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
£1,780 GBP