Round|Natural|GIA

0.53ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6555217384

Certificate GIA 6555217384

Diamond specifications and retailer prices

From £513 GBP
As of November 4, 2026
Save £612 GBP (54%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,927 GBP at NZ Jewellers · As of September 23, 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 6555217384. Listed at 24 retailers as of November 2, 2026, with a 119% 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 angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555217384
Dimensions5.17 × 5.20 × 3.23 mm
L/W Ratio1.01
Top View
5.17 mm5.20 mm0.53 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555217384
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.2%

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 4
Current: £861 GBP|Low: £470 GBP|High: £1,500 GBP|Avg: £800 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 7£513 GBP
Retailer 8£535 GBP
Retailer 9£546 GBP
Retailer 6£556 GBP
Retailer 3£728 GBP
Retailer 2£773 GBP
Retailer 1£861 GBP
Retailer 4£1,126 GBP
Retailer 5£1,495 GBP

41 data points across 9 retailers

24 retailers£513 GBP to £1,126 GBP

A
Cheapest Retailer
-
£513 GBP
Final sale: no returns
A
Retailer 2
-
£527 GBP
View
B+
Retailer 3
-
£546 GBP
View
Retailer 4
-
£556 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£556 GBP
View
Price last confirmed 60 days ago
Retailer 6
-
£556 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£556 GBP
View
Price last confirmed 29 days ago
B+
Retailer 8
-
£566 GBP
View
Retailer 9
-
£578 GBP
View
Price last confirmed 15 days ago
Retailer 10
-
£578 GBP
View
Price last confirmed 38 days ago
B+
Retailer 11
-
£635 GBP
View
Retailer 12
-
£642 GBP
View
Price last confirmed 53 days ago
Retailer 13
-
£642 GBP
View
Price last confirmed 44 days ago
Retailer 14
-
£642 GBP
View
Price last confirmed 60 days ago
B+
Retailer 15
-
£661 GBP
View
B+
Retailer 16
-
£661 GBP
View
B
Retailer 17
-
£684 GBP
View
B+
Retailer 18
-
£728 GBP
View
B+
Retailer 19
-
£773 GBP
View
B
Retailer 20
-
£861 GBP
View
B
Retailer 21
-
£1,126 GBP
View
Retailer 22
-
£1,495 GBP
View
Price last confirmed 9 days ago
Retailer 23
-
£1,927 GBP
View
Price under review
Most Expensive
NZ Jewellers
1aa67541-fd65-42fc-9ba1-fb195532e476 · Sep 23
£1,927 GBP
$2,593 USD
View
Price under review
23 more retailers have this diamond
Prices start from £513 GBPSave up to £612 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
£513 GBP