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Radiant|Natural|IGI

1.54ct J SI2 Radiant Natural Diamond

EX • J/SI2 • IGI 634413564

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 634413564

Diamond specifications and retailer prices

From £1,732 GBP
As of November 4, 2026
Save £2,312 GBP (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,044 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.54ct natural radiant diamond

This 1.54ct natural radiant 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 634413564. Listed at 15 retailers as of November 4, 2026, with prices from £1,732 to £4,044, a £2,312 spread on the same certified stone. NZ Jewellers lists it at £4,044. 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
FluorescenceFaint
Crown angle39.9°
Pavilion angle32°
OriginNatural
Grading LabIGI
CertificateIGI 634413564
Dimensions8.71 × 5.50 × 3.61 mm
L/W Ratio1.58
Culet sizePointed
Top View
8.71 mm5.50 mm1.54 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 634413564
Side View
Table 65.0%Crown 39.9°Girdle: Slightly ThickPavilion 32°Culet: NoneDepth 65.6%

Caratlytics Score

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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: £4,044 GBP|Low: £1,636 GBP|High: £4,044 GBP|Avg: £2,215 GBP
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 15£1,732 GBP
Retailer 11£1,767 GBP
Retailer 12£1,785 GBP
Retailer 3£1,820 GBP
Retailer 6£1,878 GBP
Retailer 2£1,902 GBP
Retailer 4£1,934 GBP
Retailer 13£1,934 GBP
Retailer 14£2,024 GBP
Retailer 16£2,036 GBP
Retailer 8£2,039 GBP
Retailer 5£2,232 GBP
Retailer 7£2,301 GBP
Retailer 9£2,402 GBP
Retailer 10£3,379 GBP
NZ Jewellers£4,044 GBP

43 data points across 16 retailers

15 retailers£1,732 GBP to £4,044 GBP

A
Cheapest Retailer
-
£1,732 GBP
Retailer 2
-
£1,767 GBP
View
Price last confirmed 10 days ago
A
Retailer 3
-
£1,785 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,820 GBP
View
A
Retailer 5
-
£1,878 GBP
View
A
Retailer 6
-
£1,902 GBP
View
Retailer 7
-
£1,934 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
£1,934 GBP
View
A
Retailer 9
-
£2,024 GBP
View
A
Retailer 10
-
£2,036 GBP
View
A
Retailer 11
-
£2,039 GBP
View
B+
Retailer 12
-
£2,232 GBP
View
A
Retailer 13
-
£2,402 GBP
View
B+
Retailer 14
-
£3,379 GBP
View
Most Expensive
B
NZ Jewellers
ddc9b8d2-c945-4bdd-a4f8-411a80d9f97e · Nov 5
£4,044 GBP
$5,413 USD
View
14 more retailers have this diamond
Prices start from £1,732 GBPSave up to £2,312 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 Radiant
£1,732 GBP