Round|Natural|GIA

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7563401154

Certificate GIA 7563401154

Diamond specifications and retailer prices

From £274 GBP
As of November 6, 2026
Save £1,166 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,440 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 7563401154. Listed at 14 retailers as of November 4, 2026, with prices from £274 to £1,440, a £1,166 spread on the same certified stone. NZ Jewellers lists it at £1,440. 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7563401154
Dimensions5.24 × 5.26 × 3.26 mm
L/W Ratio1.00
Girdle conditionMedium to Slightly Thick
Key to symbols
Crystal
Top View
5.24 mm5.26 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7563401154
Side View
Table 58.0%Crown 36°Girdle: UND-UNDPavilion 40.8°Culet: NDepth 62.1%

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 6
Current: £1,440 GBP|Low: £274 GBP|High: £1,440 GBP|Avg: £528 GBP|+18.7%
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 6, 2026
Retailer 2£274 GBP
Retailer 11£315 GBP
Retailer 7£376 GBP
Retailer 5£400 GBP
Retailer 10£405 GBP
Retailer 4£479 GBP
Retailer 9£485 GBP
Retailer 6£495 GBP
Retailer 12£501 GBP
Retailer 8£501 GBP
Retailer 13£511 GBP
Retailer 3£881 GBP
NZ Jewellers£1,440 GBP

27 data points across 13 retailers

14 retailers£274 GBP to £1,440 GBP

A
Cheapest Retailer
-
£274 GBP
A
Retailer 2
-
£315 GBP
View
A
Retailer 3
-
£376 GBP
View
Retailer 4
-
£400 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£405 GBP
View
Retailer 6
-
£459 GBP
View
Price last confirmed 40 days ago
B+
Retailer 7
-
£479 GBP
View
B+
Retailer 8
-
£485 GBP
View
B+
Retailer 9
-
£495 GBP
View
B+
Retailer 10
-
£501 GBP
View
B+
Retailer 11
-
£501 GBP
View
B+
Retailer 12
-
£511 GBP
View
Retailer 13
-
£881 GBP
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
fcda0742-6a4b-4140-9192-04faf867aece · Nov 4
£1,440 GBP
$1,928 USD
View
13 more retailers have this diamond
Prices start from £274 GBPSave up to £1,166 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
£274 GBP