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Radiant|Natural|GIA

1.50ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 1555653014

Certificate GIA 1555653014

Diamond specifications and retailer prices

From £4,476 GBP
A$9,227 AUD
As of October 31, 2026
Save £5,068 GBP (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £9,544 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555653014. Listed at 17 retailers as of October 30, 2026, with prices from £4,476 to £9,544, a £5,068 spread on the same certified stone. NZ Jewellers lists it at £9,544. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555653014
Dimensions8.19 × 5.55 × 3.74 mm
L/W Ratio1.48
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint
Top View
8.19 mm5.55 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555653014
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £9,544 GBP|Low: £4,307 GBP|High: £9,834 GBP|Avg: £5,880 GBP|-2.9%
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
November 1, 2026
Retailer 15£4,553 GBP
Retailer 14£4,772 GBP
Retailer 8£4,786 GBP
Retailer 12£5,037 GBP
Retailer 3£5,170 GBP
Retailer 13£5,249 GBP
Retailer 9£5,387 GBP
Retailer 6£5,508 GBP
Retailer 2£5,529 GBP
Retailer 5£5,784 GBP
Retailer 16£5,784 GBP
Retailer 4£5,965 GBP
Retailer 7£5,978 GBP
Retailer 10£6,236 GBP
Retailer 11£7,995 GBP
NZ Jewellers£9,544 GBP

34 data points across 16 retailers

17 retailers£4,476 GBP to £9,544 GBP

B+
Cheapest Retailer
-
£4,476 GBP
A$9,227 AUD
B+
Retailer 2
-
£4,553 GBP
$6,100 USD
View
B+
Retailer 3
-
£4,772 GBP
$6,394 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,786 GBP
CA$8,907 CAD
View
B+
Retailer 5
-
£5,037 GBP
$6,749 USD
View
B+
Retailer 6
-
£5,170 GBP
$6,927 USD
View
B+
Retailer 7
-
£5,249 GBP
$7,033 USD
View
B+
Retailer 8
-
£5,387 GBP
View
B
Retailer 9
-
£5,508 GBP
$7,380 USD
View
B
Retailer 10
-
£5,529 GBP
View
B+
Retailer 11
-
£5,784 GBP
$7,750 USD
View
B+
Retailer 12
-
£5,784 GBP
$7,750 USD
View
B
Retailer 13
-
£5,965 GBP
$7,993 USD
View
B
Retailer 14
-
£5,978 GBP
$8,010 USD
View
B
Retailer 15
-
£6,236 GBP
€7,958 EUR
View
B
Retailer 16
-
£7,995 GBP
View
Most Expensive
B
NZ Jewellers
b8cf5b7a-5845-4601-b83a-14c50291588b · Oct 30
£9,544 GBP
$12,788 USD
View
16 more retailers have this diamond
Prices start from £4,476 GBPSave up to £5,068 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.

B+
1.50ct Radiant
£4,476 GBP