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Round|Natural|GIA

1.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6495934859

Shape and cutting style on the report: Round brilliant

Certificate GIA 6495934859

Diamond specifications and retailer prices

From £2,406 GBP
As of November 4, 2026
Save £2,805 GBP (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,211 GBP at NZ Jewellers · As of November 2, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6495934859. Listed at 18 retailers as of November 2, 2026, with prices from £2,406 to £5,211, a £2,805 spread on the same certified stone. NZ Jewellers lists it at £5,211. 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

1.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6495934859
Dimensions7.37 × 7.34 × 4.44 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Top View
7.37 mm7.34 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6495934859
Side View
Table 60.0%Crown 33.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 60.5%

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: £5,211 GBP|Low: £2,406 GBP|High: £5,377 GBP|Avg: £3,356 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
November 5, 2026
Retailer 4£2,406 GBP
Retailer 8£2,444 GBP
Retailer 5£2,501 GBP
Retailer 6£2,517 GBP
Retailer 13£2,635 GBP
Retailer 3£2,710 GBP
Retailer 15£2,710 GBP
Retailer 17£2,814 GBP
Retailer 10£3,012 GBP
Retailer 9£3,127 GBP
Retailer 7£3,239 GBP
Retailer 2£3,363 GBP
Retailer 16£3,385 GBP
Retailer 11£3,401 GBP
Retailer 12£3,862 GBP
Retailer 14£5,028 GBP
NZ Jewellers£5,211 GBP

33 data points across 17 retailers

18 retailers£2,406 GBP to £5,211 GBP

A
Cheapest Retailer
-
£2,406 GBP
A
Retailer 2
-
£2,444 GBP
View
A
Retailer 3
-
£2,501 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,517 GBP
View
A
Retailer 5
-
£2,635 GBP
View
A
Retailer 6
-
£2,710 GBP
View
Retailer 7
-
£2,710 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£2,814 GBP
View
B+
Retailer 9
-
£3,012 GBP
View
B+
Retailer 10
-
£3,127 GBP
View
B+
Retailer 11
-
£3,239 GBP
View
Retailer 12
-
£3,338 GBP
View
Price last confirmed 17 days ago
B+
Retailer 13
-
£3,363 GBP
View
Retailer 14
-
£3,385 GBP
View
Price last confirmed 14 days ago
B+
Retailer 15
-
£3,401 GBP
View
B
Retailer 16
-
£3,862 GBP
View
Retailer 17
-
£5,028 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
67d6ccb4-41a3-4f2e-a405-7e6611aadef1 · Nov 2
£5,211 GBP
$7,013 USD
View
17 more retailers have this diamond
Prices start from £2,406 GBPSave up to £2,805 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
£2,406 GBP