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Round|Natural|IGI

0.50ct M I1 Round Natural Diamond

GD • M/I1 • IGI 583336859

Shape and cutting style on the report: Round brilliant

Certificate IGI 583336859

Diamond specifications and retailer prices

From £170 GBP
As of November 4, 2026
Save £601 GBP (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £771 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 I1 clarity (included), with a standard cut grade and certified by IGI 583336859. Listed at 7 retailers as of November 4, 2026, with prices from £170 to £771, a £601 spread on the same certified stone. NZ Jewellers lists it at £771. 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
I1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.1°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 583336859
Dimensions4.93 × 5.00 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
4.93 mm5.00 mm0.50 ctM / I1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 583336859
Side View
Table 64.0%Crown 36.1°Girdle: STK-VTKPavilion 41.2°Culet: NoneDepth 62.9%

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: £290 GBP|Low: £113 GBP|High: £293 GBP|Avg: £220 GBP|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4£113 GBP
Retailer 3£220 GBP
Retailer 2£256 GBP
Retailer 1£290 GBP

10 data points across 4 retailers

7 retailers£170 GBP to £771 GBP

B+
Cheapest Retailer
-
£170 GBP
Retailer 2
-
£184 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£189 GBP
View
B
Retailer 4
-
£220 GBP
View
B
Retailer 5
-
£229 GBP
View
B
Retailer 6
-
£290 GBP
View
Most Expensive
D
NZ Jewellers
f31e72d1-7e7f-4927-ace9-af9cc582cbf3 · Nov 4
£771 GBP
$1,038 USD
View
6 more retailers have this diamond
Prices start from £170 GBPSave up to £601 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
£170 GBP