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Round|Natural|GIA

0.51ct J IF Round Natural Diamond

EX • J/IF • GIA 6555934929

Certificate GIA 6555934929

Diamond specifications and retailer prices

From £378 GBP
As of November 6, 2026
Save £1,188 GBP (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,858 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6555934929. Listed at 18 retailers as of November 5, 2026, with a 314% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555934929
Dimensions5.08 × 5.11 × 3.15 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.08 mm5.11 mm0.51 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555934929
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.9%

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 6
Current: £1,858 GBP|Low: £377 GBP|High: £2,475 GBP|Avg: £796 GBP
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 2£378 GBP
Retailer 9£461 GBP
Retailer 14£464 GBP
Retailer 13£683 GBP
Retailer 11£756 GBP
Retailer 4£906 GBP
Retailer 15£937 GBP
Retailer 10£1,015 GBP
Retailer 8£1,051 GBP
Retailer 18£1,062 GBP
Retailer 7£1,092 GBP
Retailer 17£1,171 GBP
Retailer 3£1,178 GBP
Retailer 5£1,203 GBP
Retailer 6£1,265 GBP
Retailer 12£1,566 GBP
MOH London£1,858 GBP
Retailer 16£2,475 GBP

33 data points across 18 retailers

18 retailers£378 GBP to £1,566 GBP

A
Cheapest Retailer
-
£378 GBP
A
Retailer 2
-
£461 GBP
View
A
Retailer 3
-
£464 GBP
View
B+
Retailer 4
-
£683 GBP
View
B+
Retailer 5
-
£756 GBP
View
B
Retailer 6
-
£906 GBP
View
B
Retailer 7
-
£937 GBP
View
Final sale: no returns
B
Retailer 8
-
£1,015 GBP
View
B
Retailer 9
-
£1,051 GBP
View
B
Retailer 10
-
£1,062 GBP
View
B
Retailer 11
-
£1,092 GBP
View
B
Retailer 12
-
£1,171 GBP
View
B
Retailer 13
-
£1,178 GBP
View
B
Retailer 14
-
£1,203 GBP
View
B
Retailer 15
-
£1,265 GBP
View
B
Retailer 16
-
£1,566 GBP
View
Most Expensive
MOH London
138C7BBD1 · Nov 2
£1,858 GBP
View
Price under review
16 more retailers have this diamond
Prices start from £378 GBPSave up to £1,188 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
0.51ct Round
£378 GBP