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Round|Natural|GIA

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2547874242

Certificate GIA 2547874242

Diamond specifications and retailer prices

From £203 GBP
As of November 4, 2026
Save £946 GBP (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,149 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547874242. Listed at 12 retailers as of November 4, 2026, with prices from £203 to £1,149, a £946 spread on the same certified stone. NZ Jewellers lists it at £1,149. 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

0.55
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2547874242
Dimensions5.20 × 5.22 × 3.25 mm
L/W Ratio1.00
Top View
5.20 mm5.22 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547874242
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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: £1,149 GBP|Low: £203 GBP|High: £1,262 GBP|Avg: £475 GBP|-9.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£203 GBP
Retailer 2£247 GBP
Retailer 11£299 GBP
Retailer 5£309 GBP
Retailer 7£322 GBP
Retailer 4£380 GBP
Retailer 10£424 GBP
Retailer 8£427 GBP
Retailer 6£484 GBP
Retailer 3£712 GBP
NZ Jewellers£1,149 GBP

30 data points across 11 retailers

12 retailers£203 GBP to £1,149 GBP

A
Cheapest Retailer
-
£203 GBP
Final sale: no returns
A
Retailer 2
-
£247 GBP
View
A
Retailer 3
-
£299 GBP
View
A
Retailer 4
-
£309 GBP
View
A
Retailer 5
-
£322 GBP
View
A
Retailer 6
-
£380 GBP
View
A
Retailer 7
-
£424 GBP
View
A
Retailer 8
-
£427 GBP
View
B+
Retailer 9
-
£484 GBP
View
Retailer 10
-
£533 GBP
View
Price last confirmed 34 days ago
Retailer 11
-
£712 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
ffbf0e53-8e7b-4458-9d47-0a726c645c3c · Nov 4
£1,149 GBP
$1,546 USD
View
11 more retailers have this diamond
Prices start from £203 GBPSave up to £946 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
0.55ct Round
£203 GBP