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Round|Natural|GIA

1.00ct F I1 Round Natural Diamond

EX • F/I1 • GIA 2504551405

Certificate GIA 2504551405

Diamond specifications and retailer prices

From £1,062 GBP
$1,425 USD
As of November 1, 2026
Save £2,133 GBP (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,195 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 2504551405. Listed at 12 retailers as of November 1, 2026, with prices from £1,062 to £3,195, a £2,133 spread on the same certified stone. NZ Jewellers lists it at £3,195. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
F
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2504551405
Dimensions6.41 × 6.36 × 3.97 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.41 mm6.36 mm1.00 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2504551405
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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 1
Current: £3,195 GBP|Low: £1,062 GBP|High: £3,338 GBP|Avg: £1,566 GBP|-4.3%
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
November 1, 2026
Retailer 10£1,062 GBP
Retailer 13£1,100 GBP
Retailer 12£1,175 GBP
Retailer 11£1,187 GBP
Retailer 15£1,187 GBP
Retailer 3£1,241 GBP
Retailer 16£1,370 GBP
Retailer 4£1,401 GBP
Retailer 14£1,401 GBP
Retailer 9£1,446 GBP
Retailer 6£1,564 GBP
Retailer 5£1,698 GBP
Retailer 2£1,781 GBP
Retailer 7£1,837 GBP
Retailer 8£1,905 GBP
NZ Jewellers£3,195 GBP

25 data points across 16 retailers

12 retailers£1,062 GBP to £3,195 GBP

A
Cheapest Retailer
-
£1,062 GBP
$1,425 USD
A
Retailer 2
-
£1,100 GBP
$1,476 USD
View
A
Retailer 3
-
£1,175 GBP
$1,577 USD
View
A
Retailer 4
-
£1,187 GBP
$1,593 USD
View
A
Retailer 5
-
£1,187 GBP
$1,593 USD
View
A
Retailer 6
-
£1,241 GBP
$1,666 USD
View
A
Retailer 7
-
£1,370 GBP
$1,838 USD
View
B+
Retailer 8
-
£1,401 GBP
$1,880 USD
View
B+
Retailer 9
-
£1,401 GBP
$1,880 USD
View
B+
Retailer 10
-
£1,446 GBP
$1,940 USD
View
B+
Retailer 11
-
£1,781 GBP
€2,276 EUR
View
Most Expensive
B
NZ Jewellers
2981c1ad-2555-45a5-956b-d7b97c5f533b · Nov 2
£3,195 GBP
$4,288 USD
View
11 more retailers have this diamond
Prices start from £1,062 GBPSave up to £2,133 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
1.00ct Round
£1,062 GBP