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Round|Natural|GIA

1.50ct J IF Round Natural Diamond

EX • J/IF • GIA 2558154830

Certificate GIA 2558154830

Diamond specifications and retailer prices

From £3,840 GBP
$5,145 USD
As of October 30, 2026
Save £2,831 GBP (42%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £7,959 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct 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 2558154830. Listed at 18 retailers as of October 26, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558154830
Dimensions7.34 × 7.39 × 4.50 mm
L/W Ratio1.01
Top View
7.34 mm7.39 mm1.50 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2558154830
Side View
Table 60.0%Crown 33°Girdle: Sli. ThickPavilion 41.6°Culet: NoneDepth 61.1%

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: Oct 30
Current: £4,267 GBP|Low: £3,840 GBP|High: £6,910 GBP|Avg: £4,730 GBP|-4.3%
Retailer 1
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
November 1, 2026
Retailer 14£3,840 GBP
Retailer 4£4,065 GBP
Retailer 9£4,109 GBP
Retailer 10£4,259 GBP
Retailer 1£4,267 GBP
Retailer 3£4,344 GBP
Retailer 11£4,367 GBP
Retailer 12£4,403 GBP
Retailer 13£4,403 GBP
Retailer 2£4,516 GBP
Retailer 7£4,790 GBP
Retailer 5£5,081 GBP
Retailer 8£5,410 GBP
Retailer 6£6,671 GBP

21 data points across 14 retailers

18 retailers£3,840 GBP to £6,671 GBP

A
Cheapest Retailer
-
£3,840 GBP
$5,145 USD
A
Retailer 2
-
£4,065 GBP
$5,446 USD
View
Final sale: no returns
A
Retailer 3
-
£4,109 GBP
$5,505 USD
View
A
Retailer 4
-
£4,259 GBP
$5,706 USD
View
A
Retailer 5
-
£4,267 GBP
View
A
Retailer 6
-
£4,344 GBP
$5,820 USD
View
A
Retailer 7
-
£4,367 GBP
View
A
Retailer 8
-
£4,403 GBP
$5,900 USD
View
A
Retailer 9
-
£4,403 GBP
$5,900 USD
View
A
Retailer 10
-
£4,516 GBP
$6,051 USD
View
Retailer 11
-
£4,704 GBP
A$9,697 AUD
View
Price last confirmed 21 days ago
Retailer 12
-
£4,759 GBP
$6,376 USD
View
Price last confirmed 37 days ago
B+
Retailer 13
-
£4,790 GBP
€6,113 EUR
View
B+
Retailer 14
-
£5,081 GBP
$6,808 USD
View
B+
Retailer 15
-
£5,410 GBP
ZAR 117,110 ZAR
View
Retailer 16
-
£5,491 GBP
$7,357 USD
View
Price last confirmed 40 days ago
B+
Retailer 17
-
£6,671 GBP
View
Most Expensive
NZ Jewellers
84ea2589-4821-4041-967f-089f49edab73 · Sep 25
£7,959 GBP
$10,664 USD
View
Price last confirmed 36 days ago
17 more retailers have this diamond
Prices start from £3,840 GBPSave up to £2,831 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
1.50ct Round
£3,840 GBP