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Round|Natural|GIA

0.53ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5503488861

Certificate GIA 5503488861

Diamond specifications and retailer prices

From £276 GBP
As of November 1, 2026
Save £478 GBP (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,251 GBP at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5503488861. Listed at 11 retailers as of November 1, 2026, with a 173% 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5503488861
Dimensions5.15 × 5.18 × 3.24 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.15 mm5.18 mm0.53 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5503488861
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

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 1
Current: £1,251 GBP|Low: £206 GBP|High: £1,263 GBP|Avg: £479 GBP|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 10£276 GBP
Retailer 11£300 GBP
Retailer 9£326 GBP
Retailer 3£344 GBP
Retailer 8£351 GBP
Retailer 5£366 GBP
Retailer 4£377 GBP
Retailer 12£406 GBP
Retailer 13£447 GBP
Retailer 6£522 GBP
Retailer 2£528 GBP
Retailer 7£753 GBP
NZ Jewellers£1,251 GBP

40 data points across 13 retailers

11 retailers£276 GBP to £753 GBP

A
Cheapest Retailer
-
£276 GBP
A
Retailer 2
-
£326 GBP
View
Retailer 3
-
£344 GBP
View
Price last confirmed 10 days ago
A
Retailer 4
-
£351 GBP
View
A
Retailer 5
-
£377 GBP
View
B+
Retailer 6
-
£406 GBP
View
Retailer 7
-
£447 GBP
View
Price last confirmed 11 days ago
B
Retailer 8
-
£522 GBP
View
B+
Retailer 9
-
£528 GBP
View
B
Retailer 10
-
£753 GBP
View
Most Expensive
NZ Jewellers
6e263124-e163-4e56-8b76-b3a3d76c3507 · Oct 30
£1,251 GBP
$1,684 USD
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from £276 GBPSave up to £478 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
£276 GBP