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Round|Natural|GIA

1.54ct J IF Round Natural Diamond

EX • J/IF • GIA 5423144123

Certificate GIA 5423144123

Diamond specifications and retailer prices

From £4,175 GBP
HK$43,700 HKD
As of October 31, 2026
Save £5,216 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £9,390 GBP at NZ Jewellers · As of October 30, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 5423144123. Listed at 18 retailers as of October 30, 2026, with prices from £4,175 to £9,390, a £5,216 spread on the same certified stone. NZ Jewellers lists it at £9,390. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5423144123
Dimensions7.39 × 7.33 × 4.64 mm
L/W Ratio1.01
Top View
7.39 mm7.33 mm1.54 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5423144123
Side View
Table 57.0%Crown 35°Girdle: MediumPavilion 41.4°Culet: NoneDepth 63.0%

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: Oct 31
Current: £9,390 GBP|Low: £4,136 GBP|High: £9,390 GBP|Avg: £5,773 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
Retailer 17
Retailer 18
October 31, 2026
Retailer 12£4,175 GBP
Retailer 11£4,247 GBP
Retailer 8£4,757 GBP
Retailer 10£4,897 GBP
Retailer 6£5,182 GBP
Retailer 3£5,183 GBP
Retailer 18£5,187 GBP
Retailer 14£5,258 GBP
Retailer 16£5,449 GBP
Retailer 7£5,477 GBP
Retailer 9£5,615 GBP
Retailer 17£5,701 GBP
Retailer 5£5,736 GBP
Retailer 13£6,135 GBP
Retailer 4£6,478 GBP
Retailer 2£6,898 GBP
Retailer 15£7,866 GBP
NZ Jewellers£9,390 GBP

33 data points across 18 retailers

18 retailers£4,175 GBP to £9,390 GBP

A
Cheapest Retailer
-
£4,175 GBP
HK$43,700 HKD
A
Retailer 2
-
£4,247 GBP
₹541,967 INR
View
Retailer 3
-
£4,757 GBP
SGD 8,614 SGD
View
Price last confirmed 16 days ago
B+
Retailer 4
-
£4,897 GBP
$6,561 USD
View
B+
Retailer 5
-
£5,182 GBP
$6,943 USD
View
Final sale: no returns
B+
Retailer 6
-
£5,183 GBP
$6,944 USD
View
B+
Retailer 7
-
£5,187 GBP
$6,950 USD
View
B+
Retailer 8
-
£5,258 GBP
View
Retailer 9
-
£5,449 GBP
A$11,233 AUD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£5,477 GBP
$7,339 USD
View
B+
Retailer 11
-
£5,615 GBP
$7,523 USD
View
B+
Retailer 12
-
£5,701 GBP
$7,639 USD
View
B+
Retailer 13
-
£5,736 GBP
$7,686 USD
View
B+
Retailer 14
-
£6,135 GBP
€7,829 EUR
View
B+
Retailer 15
-
£6,478 GBP
$8,680 USD
View
B+
Retailer 16
-
£6,898 GBP
ZAR 149,319 ZAR
View
B
Retailer 17
-
£7,866 GBP
View
Most Expensive
B
NZ Jewellers
53cea710-dc03-403e-97e7-3c0b1b39c2a1 · Oct 30
£9,390 GBP
$12,582 USD
View
17 more retailers have this diamond
Prices start from £4,175 GBPSave up to £5,216 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
£4,175 GBP