CaratHunter
Plans
Round|Natural|GIA

0.51ct M IF Round Natural Diamond

EX • M/IF • GIA 6217171779

Certificate GIA 6217171779

Diamond specifications and retailer prices

From £513 GBP
As of November 5, 2026
Save £129 GBP (20%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £641 GBP at Yorxs · As of November 5, 2026
View at Yorxs

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 6217171779. Listed at 2 retailers as of November 5, 2026, with prices from £513 to £641, a £129 spread on the same certified stone. Yorxs lists it at £641. 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
OriginNatural
Grading LabGIA
CertificateGIA 6217171779
Dimensions5.08 × 5.12 × 3.16 mm
L/W Ratio1.01
Top View
5.08 mm5.12 mm0.51 ctM / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6217171779
Side View
Table 57.0%CrownGirdle: STN-MEDPavilionCulet: NoneDepth 62.0%

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 5
Current: £513 GBP|Low: £513 GBP|High: £650 GBP|Avg: £581 GBP
Retailer 1
Yorxs
November 5, 2026
Retailer 1£513 GBP
Yorxs£641 GBP

18 data points across 2 retailers

2 retailers£513 GBP to £641 GBP

B+
Cheapest Retailer
-
£513 GBP
Most Expensive
B
Yorxs
385235182 · Nov 5
£641 GBP
€822 EUR
View
1 more retailer has this diamond
Prices start from £513 GBPSave up to £129 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+
0.51ct Round
£513 GBP