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Round|Natural|GIA

0.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 2546813503

Certificate GIA 2546813503

Diamond specifications and retailer prices

From £307 GBP
As of November 6, 2026
Save £886 GBP (74%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,372 GBP at NZ Jewellers · As of October 3, 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 2546813503. Listed at 19 retailers as of November 5, 2026, with a 289% 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
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2546813503
Dimensions5.05 × 5.08 × 3.20 mm
L/W Ratio1.01
Top View
5.05 mm5.08 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546813503
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.2%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £307 GBP|Low: £307 GBP|High: £1,204 GBP|Avg: £531 GBP|-4.2%
Retailer 1
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
November 6, 2026
Retailer 1£307 GBP
Retailer 3£351 GBP
Retailer 6£356 GBP
Retailer 14£383 GBP
Retailer 7£383 GBP
Retailer 13£415 GBP
Retailer 9£436 GBP
Retailer 8£490 GBP
Retailer 10£506 GBP
Retailer 12£519 GBP
Retailer 5£548 GBP
Retailer 11£562 GBP
Retailer 15£579 GBP
Retailer 4£959 GBP
Retailer 2£1,193 GBP

21 data points across 15 retailers

19 retailers£307 GBP to £1,193 GBP

A
Cheapest Retailer
-
£307 GBP
A
Retailer 2
-
£351 GBP
View
A
Retailer 3
-
£356 GBP
View
A
Retailer 4
-
£383 GBP
View
A
Retailer 5
-
£383 GBP
View
Final sale: no returns
A
Retailer 6
-
£415 GBP
View
A
Retailer 7
-
£436 GBP
View
Retailer 8
-
£438 GBP
View
Price last confirmed 36 days ago
Retailer 9
-
£471 GBP
View
Price last confirmed 38 days ago
A
Retailer 10
-
£490 GBP
View
Retailer 11
-
£504 GBP
View
Price last confirmed 38 days ago
A
Retailer 12
-
£506 GBP
View
A
Retailer 13
-
£519 GBP
View
A
Retailer 14
-
£548 GBP
View
A
Retailer 15
-
£562 GBP
View
B+
Retailer 16
-
£579 GBP
View
B
Retailer 17
-
£959 GBP
View
B
Retailer 18
-
£1,193 GBP
View
Most Expensive
NZ Jewellers
71966183-2c33-4c97-87f3-de397c55d0e4 · Oct 3
£1,372 GBP
$1,846 USD
View
Price last confirmed 34 days ago
18 more retailers have this diamond
Prices start from £307 GBPSave up to £886 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
£307 GBP