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Round|Natural|GIA

0.53ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5556985026

Certificate GIA 5556985026

Diamond specifications and retailer prices

From £311 GBP
As of November 6, 2026
Save £661 GBP (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,354 GBP at NZ Jewellers · As of October 17, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5556985026. Listed at 15 retailers as of November 4, 2026, with a 212% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5556985026
Dimensions5.14 × 5.18 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.14 mm5.18 mm0.53 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556985026
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: £311 GBP|Low: £311 GBP|High: £1,007 GBP|Avg: £502 GBP|-6.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1£311 GBP
Retailer 3£361 GBP
Retailer 11£361 GBP
Retailer 2£389 GBP
Retailer 8£420 GBP
Retailer 4£441 GBP
Retailer 5£510 GBP
Retailer 7£523 GBP
Retailer 6£570 GBP
Retailer 10£587 GBP
Retailer 9£972 GBP

28 data points across 11 retailers

15 retailers£311 GBP to £972 GBP

A
Cheapest Retailer
-
£311 GBP
A
Retailer 2
-
£361 GBP
View
A
Retailer 3
-
£361 GBP
View
A
Retailer 4
-
£389 GBP
View
Final sale: no returns
A
Retailer 5
-
£420 GBP
View
A
Retailer 6
-
£441 GBP
View
Retailer 7
-
£453 GBP
View
Price last confirmed 53 days ago
Retailer 8
-
£465 GBP
View
Price last confirmed 22 days ago
A
Retailer 9
-
£510 GBP
View
Retailer 10
-
£523 GBP
View
Price last confirmed 53 days ago
A
Retailer 11
-
£523 GBP
View
B+
Retailer 12
-
£570 GBP
View
B+
Retailer 13
-
£587 GBP
View
B
Retailer 14
-
£972 GBP
View
Most Expensive
NZ Jewellers
f7958269-21c6-43bc-b17d-59437b9b4b74 · Oct 17
£1,354 GBP
$1,823 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from £311 GBPSave up to £661 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
£311 GBP