Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7398147226

Certificate GIA 7398147226

Diamond specifications and retailer prices

From £265 GBP
As of November 5, 2026
Save £568 GBP (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,385 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7398147226. Listed at 19 retailers as of November 4, 2026, with a 215% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7398147226
Dimensions5.08 × 5.05 × 3.16 mm
L/W Ratio1.01
Top View
5.08 mm5.05 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7398147226
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.3%

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 5
Current: £1,385 GBP|Low: £265 GBP|High: £1,385 GBP|Avg: £599 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£265 GBP
Retailer 8£364 GBP
Retailer 3£376 GBP
Retailer 5£442 GBP
Retailer 2£464 GBP
Retailer 4£487 GBP
Retailer 10£513 GBP
Retailer 7£560 GBP
Retailer 9£833 GBP
NZ Jewellers£1,385 GBP

36 data points across 10 retailers

19 retailers£265 GBP to £833 GBP

A
Cheapest Retailer
-
£265 GBP
A
Retailer 2
-
£342 GBP
View
A
Retailer 3
-
£361 GBP
View
Retailer 4
-
£361 GBP
View
Price last confirmed 43 days ago
A
Retailer 5
-
£364 GBP
View
B+
Retailer 6
-
£376 GBP
View
B+
Retailer 7
-
£389 GBP
View
Retailer 8
-
£389 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£417 GBP
View
Retailer 10
-
£417 GBP
View
Price last confirmed 45 days ago
B+
Retailer 11
-
£442 GBP
View
B+
Retailer 12
-
£464 GBP
View
B+
Retailer 13
-
£471 GBP
View
B+
Retailer 14
-
£487 GBP
View
B
Retailer 15
-
£513 GBP
View
B+
Retailer 16
-
£560 GBP
View
B
Retailer 17
-
£833 GBP
View
Retailer 18
-
£1,385 GBP
View
Price under review
Most Expensive
NZ Jewellers
9570dfb4-41ea-49e6-8f3a-bc9b883c8020 · Nov 4
£1,385 GBP
$1,864 USD
View
Price under review
18 more retailers have this diamond
Prices start from £265 GBPSave up to £568 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
£265 GBP