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Round|Natural|GIA

0.51ct M IF Round Natural Diamond

EX • M/IF • GIA 5536667670

Certificate GIA 5536667670

Diamond specifications and retailer prices

From £333 GBP
As of November 5, 2026
Save £137 GBP (29%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,276 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 M colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 5536667670. Listed at 5 retailers as of November 5, 2026, with a 41% 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
M
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5536667670
Dimensions5.11 × 5.09 × 3.18 mm
L/W Ratio1.00
Top View
5.11 mm5.09 mm0.51 ctM / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5536667670
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
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: £1,276 GBP|Low: £333 GBP|High: £1,358 GBP|Avg: £593 GBP|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5£333 GBP
Retailer 4£359 GBP
Retailer 2£384 GBP
Retailer 3£470 GBP
NZ Jewellers£1,276 GBP

44 data points across 5 retailers

5 retailers£333 GBP to £470 GBP

A
Cheapest Retailer
-
£333 GBP
A
Retailer 2
-
£359 GBP
View
A
Retailer 3
-
£384 GBP
View
B+
Retailer 4
-
£470 GBP
View
Most Expensive
NZ Jewellers
180959e8-2deb-4188-a20a-fc5f8bf2179c · Nov 4
£1,276 GBP
$1,718 USD
View
Price under review
4 more retailers have this diamond
Prices start from £333 GBPSave up to £137 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
£333 GBP