CaratHunter
Plans
Round|Natural|GIA

0.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1425876033

Certificate GIA 1425876033

Diamond specifications and retailer prices

From £359 GBP
As of November 6, 2026
Save £840 GBP (70%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,533 GBP at NZ Jewellers · As of October 30, 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 1425876033. Listed at 23 retailers as of November 6, 2026, with a 234% 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
SymmetryVery Good
FluorescenceNone
Crown angle31.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1425876033
Dimensions5.14 × 5.11 × 3.11 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Etch Channel, Cavity
Top View
5.14 mm5.11 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425876033
Side View
Table 60.0%Crown 31.5°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 60.7%

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: £359 GBP|Low: £359 GBP|High: £1,140 GBP|Avg: £607 GBP|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£359 GBP
Retailer 9£451 GBP
Retailer 6£483 GBP
Retailer 8£489 GBP
Retailer 2£577 GBP
Retailer 3£593 GBP
Retailer 5£599 GBP
Retailer 4£652 GBP
Retailer 7£1,128 GBP

34 data points across 9 retailers

23 retailers£359 GBP to £1,198 GBP

A
Cheapest Retailer
-
£359 GBP
A
Retailer 2
-
£451 GBP
View
Final sale: no returns
A
Retailer 3
-
£462 GBP
View
A
Retailer 4
-
£467 GBP
View
A
Retailer 5
-
£483 GBP
View
Retailer 6
-
£489 GBP
View
Price last confirmed 39 days ago
Retailer 7
-
£489 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£489 GBP
View
Price last confirmed 20 days ago
Retailer 9
-
£489 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£507 GBP
View
Price last confirmed 22 days ago
Retailer 11
-
£564 GBP
View
Price last confirmed 40 days ago
B+
Retailer 12
-
£564 GBP
View
B+
Retailer 13
-
£564 GBP
View
B+
Retailer 14
-
£577 GBP
View
B+
Retailer 15
-
£586 GBP
View
B+
Retailer 16
-
£593 GBP
View
B+
Retailer 17
-
£599 GBP
View
B+
Retailer 18
-
£652 GBP
View
B
Retailer 19
-
£1,128 GBP
View
B
Retailer 20
-
£1,198 GBP
View
Retailer 21
-
£1,533 GBP
View
Price last confirmed 43 days ago
Retailer 22
-
£1,533 GBP
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
3a51d64f-d5e4-44fb-8da0-0e9cd6c55249 · Oct 30
£1,533 GBP
$2,063 USD
View
Price last confirmed 7 days ago
22 more retailers have this diamond
Prices start from £359 GBPSave up to £840 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
£359 GBP