Round|Natural|GIA

0.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1186652488

Certificate GIA 1186652488

Diamond specifications and retailer prices

From £559 GBP
As of October 30, 2026
Save £24 GBP (4%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,758 GBP at NZ Jewellers · As of October 26, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1186652488. Listed at 16 retailers as of October 30, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1186652488
Dimensions5.09 × 5.05 × 3.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1186652488
Top View
5.09 mm5.05 mm0.50 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1186652488
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: £1,758 GBP|Low: £468 GBP|High: £1,758 GBP|Avg: £743 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 7£468 GBP
Retailer 3£508 GBP
Retailer 10£508 GBP
Retailer 8£528 GBP
Retailer 9£559 GBP
Retailer 2£583 GBP
Retailer 11£586 GBP
Retailer 6£703 GBP
Retailer 4£729 GBP
Retailer 5£1,028 GBP
NZ Jewellers£1,758 GBP

38 data points across 11 retailers

16 retailers£559 GBP to £583 GBP

Retailer 1
-
£464 GBP
Price last confirmed 10 days ago
Retailer 2
-
£508 GBP
View
Price last confirmed 12 days ago
Retailer 3
-
£508 GBP
View
Price last confirmed 12 days ago
Retailer 4
-
£513 GBP
View
Price last confirmed 12 days ago
Retailer 5
-
£528 GBP
View
Price last confirmed 12 days ago
B
Retailer 6
-
£559 GBP
View
B+
Retailer 7
-
£583 GBP
View
Retailer 8
-
£586 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
£645 GBP
View
Price last confirmed 11 days ago
Retailer 10
-
£674 GBP
View
Price last confirmed 9 days ago
Retailer 11
-
£703 GBP
View
Price last confirmed 11 days ago
Retailer 12
-
£729 GBP
View
Price last confirmed 7 days ago
Retailer 13
-
£785 GBP
View
Price last confirmed 11 days ago
Retailer 14
-
£1,028 GBP
View
Price last confirmed 11 days ago
Retailer 15
-
£1,617 GBP
View
Price under review
Most Expensive
NZ Jewellers
bc62ce9a-131a-4946-9f68-65edb1d5b57e · Oct 26
£1,758 GBP
$2,366 USD
View
Price under review
15 more retailers have this diamond
Prices start from £559 GBPSave up to £24 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.

B+
0.50ct Round
£559 GBP