Radiant|Natural|GIA

0.50ct E SI1 Radiant Natural Diamond

FR • E/SI1 • GIA 7428519737

Certificate GIA 7428519737

Diamond specifications and retailer prices

From £452 GBP
HK$4,700 HKD
As of October 30, 2026
Save £1,240 GBP (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,692 GBP at NZ Jewellers · As of October 27, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7428519737. Listed at 18 retailers as of October 27, 2026, with prices from £452 to £1,692, a £1,240 spread on the same certified stone. NZ Jewellers lists it at £1,692. 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
E
Colour
SI1
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7428519737
Dimensions5.03 × 3.79 × 2.83 mm
L/W Ratio1.33
Top View
5.03 mm3.79 mm0.50 ctE / SI1
OriginNatural
CutFair
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7428519737
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 74.7%

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: Oct 30
Current: £1,692 GBP|Low: £452 GBP|High: £1,692 GBP|Avg: £687 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 9£452 GBP
Retailer 8£481 GBP
Retailer 7£484 GBP
Retailer 4£497 GBP
Retailer 17£539 GBP
Retailer 18£539 GBP
Retailer 16£560 GBP
Retailer 3£623 GBP
Retailer 5£624 GBP
Retailer 10£639 GBP
Retailer 11£647 GBP
Retailer 2£664 GBP
Retailer 6£672 GBP
Retailer 14£676 GBP
Retailer 13£765 GBP
Retailer 15£831 GBP
Retailer 12£993 GBP
NZ Jewellers£1,692 GBP

23 data points across 18 retailers

18 retailers£452 GBP to £1,692 GBP

B+
Cheapest Retailer
-
£452 GBP
HK$4,700 HKD
B+
Retailer 2
-
£481 GBP
$640 USD
View
B+
Retailer 3
-
£497 GBP
$662 USD
View
Final sale: no returns
B+
Retailer 4
-
£539 GBP
$718 USD
View
B+
Retailer 5
-
£539 GBP
$718 USD
View
B+
Retailer 6
-
£560 GBP
SGD 1,008 SGD
View
B+
Retailer 7
-
£560 GBP
$746 USD
View
B
Retailer 8
-
£623 GBP
$829 USD
View
B
Retailer 9
-
£624 GBP
$831 USD
View
B
Retailer 10
-
£639 GBP
$851 USD
View
B
Retailer 11
-
£647 GBP
View
B
Retailer 12
-
£664 GBP
View
B
Retailer 13
-
£672 GBP
$895 USD
View
B
Retailer 14
-
£676 GBP
View
B
Retailer 15
-
£765 GBP
€970 EUR
View
B
Retailer 16
-
£831 GBP
ZAR 17,868 ZAR
View
C
Retailer 17
-
£993 GBP
View
Most Expensive
C
NZ Jewellers
e441ac6a-5d19-4083-8f4e-ed73d7b1a36b · Oct 27
£1,692 GBP
$2,253 USD
View
17 more retailers have this diamond
Prices start from £452 GBPSave up to £1,240 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 Radiant
£452 GBP