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Round|Natural|GIA

0.53ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5493426353

Certificate GIA 5493426353

Diamond specifications and retailer prices

From £434 GBP
As of November 4, 2026
Save £765 GBP (64%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,628 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 5493426353. Listed at 10 retailers as of November 2, 2026, with a 176% 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 angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5493426353
Dimensions5.17 × 5.15 × 3.25 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.17 mm5.15 mm0.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5493426353
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.9%

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: £1,628 GBP|Low: £362 GBP|High: £1,628 GBP|Avg: £707 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8£434 GBP
Retailer 6£468 GBP
Retailer 3£470 GBP
Retailer 9£507 GBP
Retailer 11£507 GBP
Retailer 10£542 GBP
Retailer 12£580 GBP
Retailer 2£632 GBP
Retailer 5£732 GBP
Retailer 4£781 GBP
Retailer 7£1,199 GBP
NZ Jewellers£1,628 GBP

42 data points across 12 retailers

10 retailers£434 GBP to £1,199 GBP

A
Cheapest Retailer
-
£434 GBP
Final sale: no returns
A
Retailer 2
-
£468 GBP
View
A
Retailer 3
-
£490 GBP
View
Retailer 4
-
£507 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£507 GBP
View
Retailer 6
-
£542 GBP
View
Price last confirmed 10 days ago
B+
Retailer 7
-
£632 GBP
View
B+
Retailer 8
-
£732 GBP
View
B
Retailer 9
-
£1,199 GBP
View
Most Expensive
NZ Jewellers
cafe6a60-ad8a-4dd9-a063-d242175ebeae · Oct 27
£1,628 GBP
$2,191 USD
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from £434 GBPSave up to £765 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
£434 GBP