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Round|Natural|GIA

0.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1515474597

Certificate GIA 1515474597

Diamond specifications and retailer prices

From £550 GBP
As of November 4, 2026
Save £587 GBP (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,949 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1515474597. Listed at 18 retailers as of November 4, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1515474597
Dimensions5.16 × 5.11 × 3.08 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Knot
Top View
5.16 mm5.11 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1515474597
Side View
Table 60.0%Crown 31.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.1%

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 4
Current: £1,949 GBP|Low: £550 GBP|High: £1,949 GBP|Avg: £738 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 12£550 GBP
Retailer 9£553 GBP
Retailer 16£563 GBP
Retailer 17£563 GBP
Retailer 8£571 GBP
Retailer 15£585 GBP
Retailer 4£595 GBP
Retailer 10£641 GBP
Retailer 7£643 GBP
Retailer 18£649 GBP
Retailer 2£734 GBP
Retailer 11£737 GBP
Retailer 5£744 GBP
Retailer 14£811 GBP
Retailer 6£881 GBP
Retailer 3£1,071 GBP
Retailer 13£1,137 GBP
NZ Jewellers£1,949 GBP

43 data points across 18 retailers

18 retailers£550 GBP to £1,137 GBP

A
Cheapest Retailer
-
£550 GBP
Retailer 2
-
£553 GBP
View
Price last confirmed 17 days ago
A
Retailer 3
-
£563 GBP
View
Retailer 4
-
£563 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£571 GBP
View
B+
Retailer 6
-
£585 GBP
View
B+
Retailer 7
-
£595 GBP
View
B+
Retailer 8
-
£641 GBP
View
B+
Retailer 9
-
£643 GBP
View
B+
Retailer 10
-
£649 GBP
View
B+
Retailer 11
-
£734 GBP
View
B
Retailer 12
-
£737 GBP
View
B
Retailer 13
-
£744 GBP
View
B+
Retailer 14
-
£811 GBP
View
B
Retailer 15
-
£881 GBP
View
B
Retailer 16
-
£1,071 GBP
View
B
Retailer 17
-
£1,137 GBP
View
Most Expensive
NZ Jewellers
f6714372-6799-45fe-9a29-7c2116017114 · Nov 4
£1,949 GBP
$2,623 USD
View
Price under review
17 more retailers have this diamond
Prices start from £550 GBPSave up to £587 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 Round
£550 GBP