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1.54ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 523294076

Shape and cutting style on the report: Round brilliant

Certificate IGI 523294076

Diamond specifications and retailer prices

From £2,259 GBP
As of November 6, 2026
Save £2,719 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,978 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 523294076. Listed at 16 retailers as of November 5, 2026, with prices from £2,259 to £4,978, a £2,719 spread on the same certified stone. NZ Jewellers lists it at £4,978. 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

1.54
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 523294076
Dimensions7.53 × 7.48 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.53 mm7.48 mm1.54 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 523294076
Side View
Table 57.0%Crown 32.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.1%

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: £2,259 GBP|Low: £2,259 GBP|High: £4,835 GBP|Avg: £3,164 GBP|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£2,259 GBP
Retailer 6£2,571 GBP
Retailer 7£2,638 GBP
Retailer 9£2,672 GBP
Retailer 8£2,858 GBP
Retailer 3£3,283 GBP
Retailer 4£3,295 GBP
Retailer 2£3,677 GBP
Retailer 5£4,778 GBP

45 data points across 9 retailers

16 retailers£2,259 GBP to £4,978 GBP

A
Cheapest Retailer
-
£2,259 GBP
A
Retailer 2
-
£2,537 GBP
View
A
Retailer 3
-
£2,571 GBP
View
B+
Retailer 4
-
£2,638 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,672 GBP
View
Retailer 6
-
£2,858 GBP
View
Price last confirmed 36 days ago
Retailer 7
-
£2,858 GBP
View
Price last confirmed 8 days ago
Retailer 8
-
£2,968 GBP
View
Price last confirmed 38 days ago
B+
Retailer 9
-
£3,283 GBP
View
B+
Retailer 10
-
£3,295 GBP
View
Retailer 11
-
£3,297 GBP
View
Price last confirmed 60 days ago
Retailer 12
-
£3,297 GBP
View
Price last confirmed 38 days ago
B+
Retailer 13
-
£3,677 GBP
View
B
Retailer 14
-
£4,778 GBP
View
Retailer 15
-
£4,978 GBP
View
Price last confirmed 39 days ago
Most Expensive
B
NZ Jewellers
856d63b7-0344-4dc9-8356-516cb1e9ce31 · Nov 5
£4,978 GBP
$6,700 USD
View
15 more retailers have this diamond
Prices start from £2,259 GBPSave up to £2,719 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
1.54ct Round
£2,259 GBP