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Round|Natural|GIA

1.54ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1499133299

Certificate GIA 1499133299

Diamond specifications and retailer prices

From £2,187 GBP
As of November 4, 2026
Save £2,710 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,101 GBP at NZ Jewellers · As of October 20, 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 GIA 1499133299. Listed at 18 retailers as of November 2, 2026, with a 124% 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

1.54
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1499133299
Dimensions7.38 × 7.34 × 4.54 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Cert comments
Additional twinning wisps- pinpoints and surface graining are not shown.
Key to symbols
Feather, Crystal, Twinning Wisp
Top View
7.38 mm7.34 mm1.54 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1499133299
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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: £2,206 GBP|Low: £2,187 GBP|High: £4,956 GBP|Avg: £3,080 GBP|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£2,187 GBP
Retailer 1£2,206 GBP
Retailer 2£2,630 GBP
Retailer 11£2,638 GBP
Retailer 3£2,702 GBP
Retailer 5£2,757 GBP
Retailer 9£2,770 GBP
Retailer 6£2,930 GBP
Retailer 7£3,288 GBP
Retailer 4£3,768 GBP
Retailer 8£4,897 GBP

31 data points across 11 retailers

18 retailers£2,187 GBP to £4,897 GBP

A
Cheapest Retailer
-
£2,187 GBP
A
Retailer 2
-
£2,206 GBP
View
A
Retailer 3
-
£2,577 GBP
View
A
Retailer 4
-
£2,630 GBP
View
A
Retailer 5
-
£2,638 GBP
View
A
Retailer 6
-
£2,702 GBP
View
Final sale: no returns
A
Retailer 7
-
£2,757 GBP
View
A
Retailer 8
-
£2,770 GBP
View
Retailer 9
-
£2,928 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£2,928 GBP
View
Price last confirmed 17 days ago
Retailer 11
-
£2,928 GBP
View
Price last confirmed 22 days ago
A
Retailer 12
-
£2,930 GBP
View
B+
Retailer 13
-
£3,037 GBP
View
B+
Retailer 14
-
£3,288 GBP
View
Retailer 15
-
£3,379 GBP
View
Price last confirmed 16 days ago
B+
Retailer 16
-
£3,768 GBP
View
B
Retailer 17
-
£4,897 GBP
View
Most Expensive
NZ Jewellers
d14a2bef-9199-4459-9d50-ae62086718e9 · Oct 20
£5,101 GBP
$6,866 USD
View
Price last confirmed 16 days ago
17 more retailers have this diamond
Prices start from £2,187 GBPSave up to £2,710 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
£2,187 GBP