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Round|Natural|GIA

1.00ct F FL Round Natural Diamond

EX • F/FL • GIA 6551238936

Certificate GIA 6551238936

Diamond specifications and retailer prices

From £3,847 GBP
As of November 5, 2026
Save £3,672 GBP (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £7,520 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6551238936. Listed at 20 retailers as of November 4, 2026, with prices from £3,847 to £7,520, a £3,672 spread on the same certified stone. MOH London lists it at £7,520. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551238936
Dimensions6.42 × 6.35 × 4.01 mm
L/W Ratio1.01
Top View
6.42 mm6.35 mm1.00 ctF / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551238936
Side View
Table 58.0%Crown 34.5°Girdle: THN-STKPavilion 41.8°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: Nov 5
Current: £7,520 GBP|Low: £3,847 GBP|High: £7,783 GBP|Avg: £5,201 GBP|-3.4%
MOH London
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 6, 2026
Retailer 11£3,847 GBP
Retailer 7£4,177 GBP
Retailer 13£4,197 GBP
Retailer 10£4,816 GBP
Retailer 3£4,888 GBP
Retailer 6£4,911 GBP
Retailer 16£4,994 GBP
Retailer 15£5,004 GBP
Retailer 2£5,102 GBP
Retailer 5£5,116 GBP
Retailer 12£5,292 GBP
Retailer 8£5,355 GBP
Retailer 14£5,530 GBP
Retailer 4£5,854 GBP
Retailer 9£6,601 GBP
MOH London£7,520 GBP

26 data points across 16 retailers

20 retailers£3,847 GBP to £7,520 GBP

A
Cheapest Retailer
-
£3,847 GBP
A
Retailer 2
-
£4,177 GBP
View
A
Retailer 3
-
£4,197 GBP
View
B+
Retailer 4
-
£4,816 GBP
View
B+
Retailer 5
-
£4,888 GBP
View
B+
Retailer 6
-
£4,911 GBP
View
B+
Retailer 7
-
£4,974 GBP
View
B+
Retailer 8
-
£4,994 GBP
View
Final sale: no returns
B+
Retailer 9
-
£5,004 GBP
View
Retailer 10
-
£5,093 GBP
View
Price last confirmed 29 days ago
B+
Retailer 11
-
£5,102 GBP
View
B+
Retailer 12
-
£5,116 GBP
View
B+
Retailer 13
-
£5,292 GBP
View
Retailer 14
-
£5,329 GBP
View
Price last confirmed 38 days ago
Retailer 15
-
£5,355 GBP
View
Price last confirmed 15 days ago
Retailer 16
-
£5,517 GBP
View
Price last confirmed 28 days ago
B+
Retailer 17
-
£5,530 GBP
View
B+
Retailer 18
-
£5,854 GBP
View
B+
Retailer 19
-
£6,601 GBP
View
Most Expensive
B
MOH London
8C13C696D · Nov 4
£7,520 GBP
View
19 more retailers have this diamond
Prices start from £3,847 GBPSave up to £3,672 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
£3,847 GBP