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Radiant|Natural|GIA

1.50ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 3555303611

Certificate GIA 3555303611

Diamond specifications and retailer prices

From £1,956 GBP
$2,621 USD
As of October 31, 2026
Save £2,666 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,082 GBP at NZ Jewellers · As of September 25, 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 J 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 3555303611. Listed at 16 retailers as of October 30, 2026, with a 136% 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555303611
Dimensions7.71 × 5.69 × 3.85 mm
L/W Ratio1.36
Girdle conditionPolished
Top View
7.71 mm5.69 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555303611
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

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: Oct 31
Current: £4,622 GBP|Low: £1,956 GBP|High: £4,820 GBP|Avg: £2,812 GBP|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 13£1,956 GBP
Retailer 2£1,968 GBP
Retailer 3£2,132 GBP
Retailer 15£2,164 GBP
Retailer 12£2,187 GBP
Retailer 6£2,283 GBP
Retailer 8£2,391 GBP
Retailer 7£2,470 GBP
Retailer 11£2,500 GBP
Retailer 9£2,586 GBP
Retailer 4£2,608 GBP
Retailer 14£3,106 GBP
Retailer 5£4,118 GBP
Retailer 10£4,375 GBP
NZ Jewellers£4,622 GBP

25 data points across 15 retailers

16 retailers£1,956 GBP to £4,622 GBP

A
Cheapest Retailer
-
£1,956 GBP
$2,621 USD
A
Retailer 2
-
£1,968 GBP
HK$20,600 HKD
View
A
Retailer 3
-
£2,132 GBP
$2,857 USD
View
A
Retailer 4
-
£2,164 GBP
$2,900 USD
View
A
Retailer 5
-
£2,187 GBP
$2,930 USD
View
Final sale: no returns
A
Retailer 6
-
£2,283 GBP
$3,059 USD
View
A
Retailer 7
-
£2,391 GBP
$3,203 USD
View
A
Retailer 8
-
£2,470 GBP
$3,310 USD
View
A
Retailer 9
-
£2,500 GBP
View
A
Retailer 10
-
£2,586 GBP
View
Retailer 11
-
£2,608 GBP
$3,495 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
£3,106 GBP
€3,964 EUR
View
Retailer 13
-
£4,118 GBP
$5,518 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
£4,375 GBP
View
B
Retailer 15
-
£4,622 GBP
$6,193 USD
View
Most Expensive
NZ Jewellers
c4f1e1d9-c134-474b-97ce-425374f1214b · Sep 25
£5,082 GBP
$6,809 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from £1,956 GBPSave up to £2,666 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
£1,956 GBP