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Radiant|Natural|IGI

0.50ct K SI1 Radiant Natural Diamond

VG • K/SI1 • IGI 692555298

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 692555298

Diamond specifications and retailer prices

From £173 GBP
As of November 6, 2026
Save £749 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £921 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural radiant diamond

This 0.5ct natural radiant sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 692555298. Listed at 9 retailers as of November 5, 2026, with prices from £173 to £921, a £749 spread on the same certified stone. NZ Jewellers lists it at £921. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle45.1°
Pavilion angle34.2°
OriginNatural
Grading LabIGI
CertificateIGI 692555298
Dimensions5.40 × 3.99 × 2.76 mm
L/W Ratio1.35
Culet sizePointed
Top View
5.40 mm3.99 mm0.50 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 692555298
Side View
Table 72.0%Crown 45.1°Girdle: STK-THKPavilion 34.2°Culet: NoneDepth 69.2%

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 6
Current: £921 GBP|Low: £173 GBP|High: £921 GBP|Avg: £430 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3£173 GBP
Retailer 4£293 GBP
Retailer 2£317 GBP
Retailer 6£344 GBP
Retailer 5£372 GBP
Retailer 7£448 GBP
Retailer 8£554 GBP
NZ Jewellers£921 GBP

30 data points across 8 retailers

9 retailers£173 GBP to £921 GBP

A
Cheapest Retailer
-
£173 GBP
B+
Retailer 2
-
£293 GBP
View
B+
Retailer 3
-
£317 GBP
View
B+
Retailer 4
-
£338 GBP
View
B+
Retailer 5
-
£344 GBP
View
B+
Retailer 6
-
£372 GBP
View
B
Retailer 7
-
£448 GBP
View
B
Retailer 8
-
£554 GBP
View
Most Expensive
C
NZ Jewellers
85e17a43-7da4-4a4a-a0c9-8b8b87f879b0 · Nov 5
£921 GBP
$1,233 USD
View
8 more retailers have this diamond
Prices start from £173 GBPSave up to £749 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
0.50ct Radiant
£173 GBP