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Round|Natural|IGI

0.50ct M SI2 Round Natural Diamond

GD • M/SI2 • IGI 633415965

Shape and cutting style on the report: Round brilliant

Certificate IGI 633415965

Diamond specifications and retailer prices

From £161 GBP
As of November 4, 2026
Save £568 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £729 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI 633415965. Listed at 8 retailers as of November 4, 2026, with prices from £161 to £729, a £568 spread on the same certified stone. NZ Jewellers lists it at £729. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
M
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 633415965
Dimensions5.06 × 5.08 × 3.16 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
Faint Brown
Top View
5.06 mm5.08 mm0.50 ctM / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 633415965
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.3%

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 4
Current: £729 GBP|Low: £108 GBP|High: £749 GBP|Avg: £279 GBP|-2.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£108 GBP
Retailer 4£161 GBP
Retailer 7£178 GBP
Retailer 6£180 GBP
Retailer 2£201 GBP
Retailer 5£217 GBP
Retailer 3£323 GBP
Retailer 8£325 GBP
NZ Jewellers£729 GBP

21 data points across 9 retailers

8 retailers£161 GBP to £729 GBP

B+
Cheapest Retailer
-
£161 GBP
Retailer 2
-
£178 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£180 GBP
View
B+
Retailer 4
-
£201 GBP
View
B+
Retailer 5
-
£217 GBP
View
B
Retailer 6
-
£323 GBP
View
B
Retailer 7
-
£325 GBP
View
Most Expensive
C
NZ Jewellers
5aebd25a-338f-461a-a1d0-52daa019cfa4 · Nov 4
£729 GBP
$981 USD
View
7 more retailers have this diamond
Prices start from £161 GBPSave up to £568 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+
0.50ct Round
£161 GBP