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Round|Natural|IGI

0.53ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 839661124

Shape and cutting style on the report: Round brilliant

Certificate IGI 839661124

Diamond specifications and retailer prices

From £282 GBP
As of November 6, 2026
Save £583 GBP (67%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £865 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.53ct natural round diamond

This 0.53ct 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 IGI 839661124. Listed at 9 retailers as of November 4, 2026, with prices from £282 to £865, a £583 spread on the same certified stone. NZ Jewellers lists it at £865. 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

0.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 839661124
Dimensions5.20 × 5.25 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.20 mm5.25 mm0.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 839661124
Side View
Table 57.0%Crown 33.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.7%

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 6
Current: £865 GBP|Low: £282 GBP|High: £865 GBP|Avg: £409 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£282 GBP
Retailer 2£290 GBP
Retailer 3£295 GBP
Retailer 4£311 GBP
Retailer 9£322 GBP
Retailer 5£350 GBP
Retailer 8£425 GBP
Retailer 7£521 GBP
NZ Jewellers£865 GBP

17 data points across 9 retailers

9 retailers£282 GBP to £865 GBP

A
Cheapest Retailer
-
£282 GBP
A
Retailer 2
-
£290 GBP
View
A
Retailer 3
-
£295 GBP
View
B+
Retailer 4
-
£311 GBP
View
A
Retailer 5
-
£322 GBP
View
B+
Retailer 6
-
£350 GBP
View
B+
Retailer 7
-
£425 GBP
View
B+
Retailer 8
-
£521 GBP
View
Most Expensive
B
NZ Jewellers
f1919088-4781-4111-96c9-aeb1edc503f5 · Nov 4
£865 GBP
$1,164 USD
View
8 more retailers have this diamond
Prices start from £282 GBPSave up to £583 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
0.53ct Round
£282 GBP