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Oval|Natural|GIA

0.50ct G SI1 Oval Natural Diamond

GD • G/SI1 • GIA 1423529720

Certificate GIA 1423529720

Diamond specifications and retailer prices

From £400 GBP
As of November 6, 2026
Save £628 GBP (61%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,762 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural oval diamond

This 0.5ct natural oval 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 1423529720. Listed at 21 retailers as of November 4, 2026, with a 157% 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1423529720
Dimensions6.40 × 4.59 × 2.54 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Feather
Top View
6.40 mm4.59 mm0.50 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1423529720
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.2%

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: Nov 6
Current: £1,762 GBP|Low: £400 GBP|High: £1,762 GBP|Avg: £698 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
November 6, 2026
Retailer 2£400 GBP
Retailer 10£501 GBP
Retailer 7£518 GBP
Retailer 8£560 GBP
Retailer 4£562 GBP
Retailer 6£562 GBP
Retailer 11£573 GBP
Retailer 5£583 GBP
Retailer 15£619 GBP
Retailer 17£648 GBP
Retailer 18£660 GBP
Retailer 12£668 GBP
Retailer 3£691 GBP
Retailer 9£766 GBP
Retailer 16£796 GBP
Retailer 13£867 GBP
Retailer 14£1,027 GBP
NZ Jewellers£1,762 GBP

32 data points across 18 retailers

21 retailers£400 GBP to £1,027 GBP

A
Cheapest Retailer
-
£400 GBP
B+
Retailer 2
-
£468 GBP
View
B+
Retailer 3
-
£501 GBP
View
B+
Retailer 4
-
£518 GBP
View
Final sale: no returns
Retailer 5
-
£560 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
£562 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£562 GBP
View
B
Retailer 8
-
£573 GBP
View
B
Retailer 9
-
£583 GBP
View
B
Retailer 10
-
£619 GBP
View
B
Retailer 11
-
£648 GBP
View
B
Retailer 12
-
£660 GBP
View
B
Retailer 13
-
£668 GBP
View
B
Retailer 14
-
£691 GBP
View
B
Retailer 15
-
£766 GBP
View
B
Retailer 16
-
£796 GBP
View
Retailer 17
-
£848 GBP
View
Price last confirmed 32 days ago
B
Retailer 18
-
£867 GBP
View
C
Retailer 19
-
£959 GBP
View
B
Retailer 20
-
£1,027 GBP
View
Most Expensive
NZ Jewellers
ecab9638-d905-4405-af65-9c5a284701e7 · Nov 5
£1,762 GBP
$2,359 USD
View
Price under review
20 more retailers have this diamond
Prices start from £400 GBPSave up to £628 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 Oval
£400 GBP