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Round|Natural|GIA

1.03ct F VS1 Round Natural Diamond

EX • F/VS1 • GIA 6425535481

Certificate GIA 6425535481

Diamond specifications and retailer prices

From £4,078 GBP
As of November 6, 2026
Save £3,943 GBP (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £8,246 GBP at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6425535481. Listed at 17 retailers as of November 5, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6425535481
Dimensions6.47 × 6.43 × 4.02 mm
L/W Ratio1.01
Top View
6.47 mm6.43 mm1.03 ctF / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425535481
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,137 GBP|Low: £3,738 GBP|High: £7,273 GBP|Avg: £4,587 GBP|-1.1%
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
November 7, 2026
Retailer 4£3,852 GBP
Retailer 12£3,904 GBP
Retailer 10£4,078 GBP
Retailer 11£4,120 GBP
Retailer 1£4,137 GBP
Retailer 8£4,255 GBP
Retailer 3£4,418 GBP
Retailer 2£4,448 GBP
Retailer 5£4,530 GBP
Retailer 13£4,533 GBP
Retailer 6£4,796 GBP
Retailer 7£5,379 GBP
Retailer 9£6,516 GBP

13 data points across 13 retailers

17 retailers£4,078 GBP to £8,021 GBP

Retailer 1
-
£3,852 GBP
Price last confirmed 12 days ago
Retailer 2
-
£3,904 GBP
View
Price last confirmed 31 days ago
B+
Retailer 3
-
£4,078 GBP
View
Final sale: no returns
Retailer 4
-
£4,120 GBP
View
Price last confirmed 10 days ago
B+
Retailer 5
-
£4,137 GBP
View
Retailer 6
-
£4,255 GBP
View
Price last confirmed 11 days ago
Retailer 7
-
£4,448 GBP
View
Price last confirmed 34 days ago
B+
Retailer 8
-
£4,530 GBP
View
Retailer 9
-
£4,533 GBP
View
Price last confirmed 13 days ago
B+
Retailer 10
-
£4,796 GBP
View
Retailer 11
-
£4,930 GBP
View
Price last confirmed 51 days ago
Retailer 12
-
£5,379 GBP
View
Price last confirmed 11 days ago
Retailer 13
-
£5,688 GBP
View
Price last confirmed 46 days ago
Retailer 14
-
£6,516 GBP
View
Price last confirmed 12 days ago
Retailer 15
-
£7,388 GBP
View
Price last confirmed 35 days ago
B
Retailer 16
-
£8,021 GBP
View
Most Expensive
NZ Jewellers
03aaa112-5563-4b90-b74a-a1bb79c59840 · Sep 19
£8,246 GBP
$11,037 USD
View
Price last confirmed 48 days ago
16 more retailers have this diamond
Prices start from £4,078 GBPSave up to £3,943 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.

B+
1.03ct Round
£4,078 GBP