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Round|Natural|GIA

0.51ct G IF Round Natural Diamond

EX • G/IF • GIA 6551943768

Certificate GIA 6551943768

Diamond specifications and retailer prices

From £521 GBP
As of November 5, 2026
Save £1,660 GBP (76%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £2,181 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6551943768. Listed at 28 retailers as of November 4, 2026, with prices from £521 to £2,181, a £1,660 spread on the same certified stone. NZ Jewellers lists it at £2,181. 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
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551943768
Dimensions5.09 × 5.12 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.09 mm5.12 mm0.51 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551943768
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,181 GBP|Low: £518 GBP|High: £2,181 GBP|Avg: £895 GBP
NZ Jewellers
Retailer 2
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Retailer 21
November 6, 2026
Retailer 15£521 GBP
Retailer 21£523 GBP
Retailer 18£629 GBP
Retailer 7£641 GBP
Retailer 4£647 GBP
Retailer 6£649 GBP
Retailer 17£695 GBP
Retailer 3£701 GBP
Retailer 16£701 GBP
Retailer 5£722 GBP
Retailer 12£727 GBP
Retailer 10£802 GBP
Retailer 2£809 GBP
Retailer 13£834 GBP
Retailer 19£907 GBP
Retailer 11£920 GBP
Retailer 14£927 GBP
Retailer 9£990 GBP
Retailer 20£1,273 GBP
Retailer 8£1,404 GBP
NZ Jewellers£2,181 GBP

27 data points across 21 retailers

28 retailers£521 GBP to £2,181 GBP

A+
Cheapest Retailer
-
£521 GBP
A
Retailer 2
-
£523 GBP
View
A
Retailer 3
-
£629 GBP
View
A
Retailer 4
-
£639 GBP
View
A
Retailer 5
-
£641 GBP
View
Final sale: no returns
Retailer 6
-
£647 GBP
View
Price last confirmed 11 days ago
A
Retailer 7
-
£649 GBP
View
Retailer 8
-
£688 GBP
View
Price last confirmed 60 days ago
Retailer 9
-
£688 GBP
View
Price last confirmed 57 days ago
A
Retailer 10
-
£695 GBP
View
A
Retailer 11
-
£701 GBP
View
A
Retailer 12
-
£701 GBP
View
A
Retailer 13
-
£722 GBP
View
Retailer 14
-
£727 GBP
View
Price last confirmed 10 days ago
Retailer 15
-
£794 GBP
View
Price last confirmed 60 days ago
Retailer 16
-
£794 GBP
View
Price last confirmed 56 days ago
A
Retailer 17
-
£802 GBP
View
A
Retailer 18
-
£809 GBP
View
A
Retailer 19
-
£834 GBP
View
A
Retailer 20
-
£907 GBP
View
A
Retailer 21
-
£920 GBP
View
B+
Retailer 22
-
£927 GBP
View
B+
Retailer 23
-
£990 GBP
View
B+
Retailer 24
-
£1,273 GBP
View
B+
Retailer 25
-
£1,404 GBP
View
Retailer 26
-
£2,157 GBP
View
Price last confirmed 66 days ago
Retailer 27
-
£2,157 GBP
View
Price last confirmed 57 days ago
Most Expensive
B
NZ Jewellers
8f9d0c7a-b584-4ce7-aaa6-f7294f47fafa · Nov 4
£2,181 GBP
$2,935 USD
View
27 more retailers have this diamond
Prices start from £521 GBPSave up to £1,660 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
£521 GBP