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Round|Natural|GIA

1.50ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 5231832429

Certificate GIA 5231832429

Diamond specifications and retailer prices

From £1,879 GBP
As of November 4, 2026
Save £1,997 GBP (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,471 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5231832429. Listed at 14 retailers as of November 4, 2026, with a 106% 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

1.50
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5231832429
Dimensions7.29 × 7.33 × 4.58 mm
L/W Ratio1.01
Top View
7.29 mm7.33 mm1.50 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231832429
Side View
Table 57.0%Crown 34°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
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: £4,355 GBP|Low: £1,879 GBP|High: £4,402 GBP|Avg: £2,689 GBP|-1.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4£1,879 GBP
Retailer 9£1,921 GBP
Retailer 11£2,021 GBP
Retailer 7£2,091 GBP
Retailer 3£2,161 GBP
Retailer 10£2,337 GBP
Retailer 12£2,514 GBP
Retailer 5£2,571 GBP
Retailer 6£2,916 GBP
Retailer 2£3,135 GBP
Retailer 8£3,876 GBP
NZ Jewellers£4,355 GBP

29 data points across 12 retailers

14 retailers£1,879 GBP to £3,876 GBP

A
Cheapest Retailer
-
£1,879 GBP
A
Retailer 2
-
£1,921 GBP
View
A
Retailer 3
-
£2,021 GBP
View
B+
Retailer 4
-
£2,091 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,161 GBP
View
B+
Retailer 6
-
£2,161 GBP
View
B+
Retailer 7
-
£2,337 GBP
View
Retailer 8
-
£2,514 GBP
View
Price last confirmed 17 days ago
B+
Retailer 9
-
£2,571 GBP
View
B
Retailer 10
-
£2,916 GBP
View
B
Retailer 11
-
£3,135 GBP
View
B
Retailer 12
-
£3,876 GBP
View
Retailer 13
-
£4,355 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
fed64efd-19dc-4394-a064-da18d2aa772e · Sep 25
£4,471 GBP
$6,018 USD
View
Price last confirmed 41 days ago
13 more retailers have this diamond
Prices start from £1,879 GBPSave up to £1,997 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
£1,879 GBP