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Radiant|Natural|GIA

0.50ct G SI2 Radiant Natural Diamond

VG • G/SI2 • GIA 5221308644

Certificate GIA 5221308644

Diamond specifications and retailer prices

From £445 GBP
$596 USD
As of October 29, 2026
Save £950 GBP (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,395 GBP at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5221308644. Listed at 7 retailers as of October 29, 2026, with prices from £445 to £1,395, a £950 spread on the same certified stone. NZ Jewellers lists it at £1,395. 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5221308644
Dimensions5.23 × 4.11 × 2.64 mm
L/W Ratio1.27
Culet sizeNone
Top View
5.23 mm4.11 mm0.50 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5221308644
Side View
Table 71.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,395 GBP|Low: £445 GBP|High: £1,395 GBP|Avg: £656 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9£445 GBP
Retailer 5£452 GBP
Retailer 6£479 GBP
Retailer 7£479 GBP
Retailer 8£492 GBP
Retailer 10£513 GBP
Retailer 3£577 GBP
Retailer 2£657 GBP
Retailer 11£677 GBP
Retailer 4£1,032 GBP
NZ Jewellers£1,395 GBP

18 data points across 11 retailers

7 retailers£445 GBP to £1,395 GBP

A
Cheapest Retailer
-
£445 GBP
$596 USD
A
Retailer 2
-
£452 GBP
$605 USD
View
B+
Retailer 3
-
£479 GBP
$642 USD
View
B+
Retailer 4
-
£513 GBP
$688 USD
View
B
Retailer 5
-
£657 GBP
€839 EUR
View
B
Retailer 6
-
£1,032 GBP
View
Most Expensive
C
NZ Jewellers
7a819b82-25ae-4b91-9080-0f27ac67a08c · Oct 30
£1,395 GBP
$1,869 USD
View
6 more retailers have this diamond
Prices start from £445 GBPSave up to £950 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
£445 GBP