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Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 5242094717

Certificate GIA 5242094717

Diamond specifications and retailer prices

From £3,324 GBP
HK$34,800 HKD
As of November 1, 2026
Save £4,246 GBP (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,571 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242094717. Listed at 8 retailers as of October 30, 2026, with prices from £3,324 to £7,571, a £4,246 spread on the same certified stone. NZ Jewellers lists it at £7,571. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle60.6°
OriginNatural
Grading LabGIA
CertificateGIA 5242094717
Dimensions7.39 × 5.67 × 3.89 mm
L/W Ratio1.30
Key to symbols
Feather, Crystal, Needle
Top View
7.39 mm5.67 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242094717
Side View
Table 63.0%CrownGirdle: STK-THKPavilion 60.6°Culet: NoneDepth 68.6%

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 1
Current: £7,571 GBP|Low: £3,296 GBP|High: £8,014 GBP|Avg: £4,928 GBP|-5.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5£3,324 GBP
Retailer 7£3,837 GBP
Retailer 2£4,265 GBP
Retailer 3£4,526 GBP
Retailer 8£4,579 GBP
Retailer 6£4,759 GBP
Retailer 4£6,669 GBP
NZ Jewellers£7,571 GBP

12 data points across 8 retailers

8 retailers£3,324 GBP to £7,571 GBP

A
Cheapest Retailer
-
£3,324 GBP
HK$34,800 HKD
A
Retailer 2
-
£3,837 GBP
SGD 6,947 SGD
View
A
Retailer 3
-
£4,265 GBP
View
B+
Retailer 4
-
£4,526 GBP
$6,065 USD
View
B+
Retailer 5
-
£4,579 GBP
$6,136 USD
View
B+
Retailer 6
-
£4,759 GBP
$6,376 USD
View
B
Retailer 7
-
£6,669 GBP
View
Most Expensive
B
NZ Jewellers
ae436153-b22f-4c1b-8b06-8c7581951cda · Oct 30
£7,571 GBP
$10,144 USD
View
7 more retailers have this diamond
Prices start from £3,324 GBPSave up to £4,246 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 Radiant
£3,324 GBP