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Round|Natural|IGI

0.53ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 815686500

Shape and cutting style on the report: Round brilliant

Certificate IGI 815686500

Diamond specifications and retailer prices

From £160 GBP
As of November 6, 2026
Save £350 GBP (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £911 GBP at NZ Jewellers · As of October 3, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 815686500. Listed at 10 retailers as of November 1, 2026, with a 218% 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

0.53
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 815686500
Dimensions5.18 × 5.22 × 3.19 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.18 mm5.22 mm0.53 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815686500
Side View
Table 59.0%Crown 34.1°Girdle: MediumPavilion 41°Culet: NoneDepth 61.3%

Caratlytics Score

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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: £160 GBP|Low: £160 GBP|High: £561 GBP|Avg: £318 GBP|-12.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£160 GBP
Retailer 6£242 GBP
Retailer 7£262 GBP
Retailer 4£302 GBP
Retailer 2£314 GBP
Retailer 3£371 GBP
Retailer 5£510 GBP

42 data points across 7 retailers

10 retailers£160 GBP to £510 GBP

A
Cheapest Retailer
-
£160 GBP
Retailer 2
-
£238 GBP
View
Price last confirmed 36 days ago
Retailer 3
-
£242 GBP
View
Price last confirmed 8 days ago
Retailer 4
-
£267 GBP
View
Price last confirmed 38 days ago
A
Retailer 5
-
£302 GBP
View
A
Retailer 6
-
£314 GBP
View
Retailer 7
-
£320 GBP
View
Price last confirmed 35 days ago
A
Retailer 8
-
£371 GBP
View
B+
Retailer 9
-
£510 GBP
View
Most Expensive
NZ Jewellers
b7294b10-3c03-44c8-b30b-2c0b72bcdc6a · Oct 3
£911 GBP
$1,226 USD
View
Price last confirmed 34 days ago
9 more retailers have this diamond
Prices start from £160 GBPSave up to £350 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
£160 GBP