Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6552634711

Certificate GIA 6552634711

Diamond specifications and retailer prices

From £246 GBP
As of November 5, 2026
Save £1,045 GBP (81%) vs most expensive(unlock to see where)
35 retailers carry this diamond
Most expensive: £1,291 GBP at NZ Jewellers · As of October 20, 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 6552634711. Listed at 35 retailers as of November 4, 2026, with a 425% 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
SymmetryVery Good
FluorescenceFaint
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552634711
Dimensions5.10 × 5.13 × 3.11 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
5.10 mm5.13 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552634711
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.8%

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 5
Current: £352 GBP|Low: £246 GBP|High: £787 GBP|Avg: £449 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£246 GBP
Retailer 10£285 GBP
Retailer 1£352 GBP
Retailer 9£363 GBP
Retailer 2£366 GBP
Retailer 3£412 GBP
Retailer 5£429 GBP
Retailer 7£522 GBP
Retailer 4£538 GBP
Retailer 8£777 GBP

36 data points across 10 retailers

35 retailers£246 GBP to £1,291 GBP

A
Cheapest Retailer
-
£246 GBP
A
Retailer 2
-
£285 GBP
View
Retailer 3
-
£337 GBP
View
Price last confirmed 36 days ago
Retailer 4
-
£337 GBP
View
Price last confirmed 17 days ago
Retailer 5
-
£337 GBP
View
Price last confirmed 50 days ago
Retailer 6
-
£337 GBP
View
Price last confirmed 29 days ago
Retailer 7
-
£337 GBP
View
Price last confirmed 29 days ago
A
Retailer 8
-
£337 GBP
View
B+
Retailer 9
-
£352 GBP
View
Retailer 10
-
£363 GBP
View
Price last confirmed 22 days ago
Retailer 11
-
£363 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
£363 GBP
View
Price last confirmed 26 days ago
B+
Retailer 13
-
£363 GBP
View
Retailer 14
-
£363 GBP
View
Price last confirmed 22 days ago
Retailer 15
-
£363 GBP
View
Price last confirmed 29 days ago
B+
Retailer 16
-
£363 GBP
View
B+
Retailer 17
-
£366 GBP
View
Retailer 18
-
£389 GBP
View
Price last confirmed 48 days ago
Retailer 19
-
£389 GBP
View
Price last confirmed 17 days ago
Retailer 20
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£389 GBP
View
Price last confirmed 29 days ago
Retailer 21
-
£389 GBP
View
Price last confirmed 33 days ago
B+
Retailer 22
-
£389 GBP
View
B+
Retailer 23
-
£412 GBP
View
B+
Retailer 24
-
£429 GBP
View
B+
Retailer 25
-
£434 GBP
View
B+
Retailer 26
-
£436 GBP
View
B
Retailer 27
-
£490 GBP
View
B
Retailer 28
-
£522 GBP
View
B
Retailer 29
-
£538 GBP
View
B
Retailer 30
-
£777 GBP
View
Retailer 31
-
£1,291 GBP
View
Price last confirmed 48 days ago
Retailer 32
-
£1,291 GBP
View
Price last confirmed 34 days ago
Retailer 33
-
£1,291 GBP
View
Price last confirmed 29 days ago
C
Retailer 34
-
£1,291 GBP
View
Most Expensive
NZ Jewellers
ec1ec0f6-355d-4f8e-a891-8b03a913776a · Oct 20
£1,291 GBP
$1,737 USD
View
Price last confirmed 17 days ago
34 more retailers have this diamond
Prices start from £246 GBPSave up to £1,045 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
£246 GBP