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Round|Natural|GIA

0.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 3565463260

Certificate GIA 3565463260

Diamond specifications and retailer prices

From £304 GBP
As of November 6, 2026
Save £942 GBP (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,246 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3565463260. Listed at 21 retailers as of November 4, 2026, with prices from £304 to £1,246, a £942 spread on the same certified stone. NZ Jewellers lists it at £1,246. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3565463260
Dimensions5.13 × 5.10 × 3.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
5.13 mm5.10 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565463260
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.5%

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: £1,246 GBP|Low: £304 GBP|High: £1,246 GBP|Avg: £540 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
November 6, 2026
Retailer 2£304 GBP
Retailer 13£383 GBP
Retailer 6£397 GBP
Retailer 10£406 GBP
Retailer 8£418 GBP
Retailer 3£428 GBP
Retailer 5£428 GBP
Retailer 4£458 GBP
Retailer 9£491 GBP
Retailer 7£511 GBP
Retailer 11£588 GBP
Retailer 12£613 GBP
Retailer 14£916 GBP
NZ Jewellers£1,246 GBP

25 data points across 14 retailers

21 retailers£304 GBP to £1,246 GBP

A
Cheapest Retailer
-
£304 GBP
A
Retailer 2
-
£342 GBP
View
A
Retailer 3
-
£357 GBP
View
A
Retailer 4
-
£366 GBP
View
Final sale: no returns
A
Retailer 5
-
£383 GBP
View
B+
Retailer 6
-
£397 GBP
View
A
Retailer 7
-
£406 GBP
View
B+
Retailer 8
-
£418 GBP
View
B+
Retailer 9
-
£428 GBP
View
Retailer 10
-
£428 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£458 GBP
View
B+
Retailer 12
-
£491 GBP
View
B+
Retailer 13
-
£495 GBP
View
B+
Retailer 14
-
£502 GBP
View
B+
Retailer 15
-
£511 GBP
View
B
Retailer 16
-
£546 GBP
View
B+
Retailer 17
-
£588 GBP
View
Retailer 18
-
£597 GBP
View
Price last confirmed 33 days ago
B
Retailer 19
-
£613 GBP
View
B
Retailer 20
-
£916 GBP
View
Most Expensive
B
NZ Jewellers
c1e8d59f-17f8-46f6-ae7d-e312b07d515b · Nov 4
£1,246 GBP
$1,677 USD
View
20 more retailers have this diamond
Prices start from £304 GBPSave up to £942 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
£304 GBP