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Round|Natural|GIA

0.53ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6431690458

Certificate GIA 6431690458

Diamond specifications and retailer prices

From £424 GBP
As of November 4, 2026
Save £636 GBP (60%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,439 GBP at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6431690458. Listed at 11 retailers as of November 2, 2026, with a 150% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6431690458
Dimensions5.22 × 5.19 × 3.22 mm
L/W Ratio1.01
Top View
5.22 mm5.19 mm0.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6431690458
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.9%

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 4
Current: £1,439 GBP|Low: £353 GBP|High: £1,439 GBP|Avg: £697 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£424 GBP
Retailer 4£457 GBP
Retailer 7£494 GBP
Retailer 9£494 GBP
Retailer 8£530 GBP
Retailer 2£553 GBP
Retailer 3£672 GBP
Retailer 5£1,060 GBP
NZ Jewellers£1,439 GBP

43 data points across 9 retailers

11 retailers£424 GBP to £1,060 GBP

A
Cheapest Retailer
-
£424 GBP
Final sale: no returns
A
Retailer 2
-
£434 GBP
View
A
Retailer 3
-
£457 GBP
View
Retailer 4
-
£494 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£494 GBP
View
Retailer 6
-
£530 GBP
View
Price last confirmed 10 days ago
B+
Retailer 7
-
£553 GBP
View
B+
Retailer 8
-
£556 GBP
View
B+
Retailer 9
-
£672 GBP
View
B
Retailer 10
-
£1,060 GBP
View
Most Expensive
NZ Jewellers
6d97b7a4-24b5-462d-be65-eae184f6270d · Oct 27
£1,439 GBP
$1,937 USD
View
Price last confirmed 10 days ago
10 more retailers have this diamond
Prices start from £424 GBPSave up to £636 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
£424 GBP