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Round|Natural|GIA

1.00ct F IF Round Natural Diamond

EX • F/IF • GIA 5231509355

Certificate GIA 5231509355

Diamond specifications and retailer prices

From £4,893 GBP
As of November 4, 2026
Save £4,699 GBP (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £9,591 GBP at NZ Jewellers · As of November 5, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 5231509355. Listed at 19 retailers as of November 4, 2026, with prices from £4,893 to £9,591, a £4,699 spread on the same certified stone. NZ Jewellers lists it at £9,591. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5231509355
Dimensions6.50 × 6.47 × 3.86 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.50 mm6.47 mm1.00 ctF / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231509355
Side View
Table 59.0%Crown 34°Girdle: ThickPavilion 40.6°Culet: NoneDepth 59.5%

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 4
Current: £5,109 GBP|Low: £4,392 GBP|High: £8,087 GBP|Avg: £5,638 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2£4,392 GBP
Retailer 7£4,893 GBP
Retailer 9£4,956 GBP
Retailer 1£5,109 GBP
Retailer 10£5,292 GBP
Retailer 3£5,317 GBP
Retailer 8£5,529 GBP
Retailer 4£5,896 GBP
Retailer 5£6,997 GBP
Retailer 6£7,970 GBP

35 data points across 10 retailers

19 retailers£4,893 GBP to £9,591 GBP

Retailer 1
-
£4,392 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
£4,893 GBP
View
B+
Retailer 3
-
£4,947 GBP
View
B+
Retailer 4
-
£4,956 GBP
View
B+
Retailer 5
-
£5,109 GBP
View
B+
Retailer 6
-
£5,290 GBP
View
B+
Retailer 7
-
£5,292 GBP
View
Final sale: no returns
Retailer 8
-
£5,293 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£5,317 GBP
View
Retailer 10
-
£5,529 GBP
View
Price last confirmed 15 days ago
B+
Retailer 11
-
£5,734 GBP
View
B+
Retailer 12
-
£5,823 GBP
View
B+
Retailer 13
-
£5,831 GBP
View
B+
Retailer 14
-
£5,896 GBP
View
B+
Retailer 15
-
£6,205 GBP
View
B+
Retailer 16
-
£6,616 GBP
View
B+
Retailer 17
-
£6,997 GBP
View
B
Retailer 18
-
£7,970 GBP
View
Most Expensive
B
NZ Jewellers
038ca213-2bb3-4638-856d-d3805f30c755 · Nov 5
£9,591 GBP
$12,909 USD
View
18 more retailers have this diamond
Prices start from £4,893 GBPSave up to £4,699 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
£4,893 GBP