Radiant|Natural|GIA

0.50ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 6495981491

Certificate GIA 6495981491

Diamond specifications and retailer prices

From £479 GBP
$643 USD
As of November 2, 2026
Save £721 GBP (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,629 GBP at NZ Jewellers · As of September 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6495981491. Listed at 15 retailers as of November 2, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6495981491
Dimensions5.43 × 3.89 × 2.71 mm
L/W Ratio1.40
Top View
5.43 mm3.89 mm0.50 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6495981491
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.7%

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: Nov 2
Current: £636 GBP|Low: £479 GBP|High: £1,214 GBP|Avg: £692 GBP|+5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 9£479 GBP
Retailer 5£496 GBP
Retailer 3£519 GBP
Retailer 11£519 GBP
Retailer 1£636 GBP
Retailer 8£651 GBP
Retailer 2£652 GBP
Retailer 6£739 GBP
Retailer 10£781 GBP
Retailer 7£802 GBP
Retailer 4£1,200 GBP

42 data points across 11 retailers

15 retailers£479 GBP to £1,200 GBP

B+
Cheapest Retailer
-
£479 GBP
$643 USD
Final sale: no returns
B+
Retailer 2
-
£496 GBP
HK$5,200 HKD
View
Retailer 3
-
£519 GBP
$697 USD
View
Price last confirmed 26 days ago
Retailer 4
-
£519 GBP
$697 USD
View
Price last confirmed 26 days ago
Retailer 5
-
£540 GBP
$724 USD
View
Price last confirmed 33 days ago
Retailer 6
-
£599 GBP
$804 USD
View
Price last confirmed 35 days ago
B
Retailer 7
-
£618 GBP
$829 USD
View
B
Retailer 8
-
£636 GBP
View
B
Retailer 9
-
£651 GBP
View
B
Retailer 10
-
£652 GBP
$875 USD
View
B
Retailer 11
-
£739 GBP
€944 EUR
View
Retailer 12
-
£781 GBP
A$1,613 AUD
View
Price last confirmed 30 days ago
B
Retailer 13
-
£802 GBP
ZAR 17,384 ZAR
View
B
Retailer 14
-
£1,200 GBP
View
Most Expensive
NZ Jewellers
07cae21b-b936-4013-967e-3957b32a4bc0 · Sep 30
£1,629 GBP
$2,186 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from £479 GBPSave up to £721 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
£479 GBP