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Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 5234058462

Certificate GIA 5234058462

Diamond specifications and retailer prices

From $4,255 NZD
SGD 3,241 SGD
As of October 31, 2026
Save $5,614 NZD (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,870 NZD at MOH London · As of November 1, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5234058462. Listed at 9 retailers as of October 31, 2026, with prices from $4,255 to $9,870, a $5,614 spread on the same certified stone. MOH London lists it at $9,870. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.6°
Pavilion angle60.2°
OriginNatural
Grading LabGIA
CertificateGIA 5234058462
Dimensions6.30 × 6.17 × 4.16 mm
L/W Ratio1.02
Top View
6.30 mm6.17 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5234058462
Side View
Table 66.0%Crown 49.6°Girdle: ThickPavilion 60.2°Culet: NoneDepth 67.4%

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: $9,870 NZD|Low: $4,255 NZD|High: $10,478 NZD|Avg: $6,600 NZD|-4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$4,255 NZD
Retailer 7$5,240 NZD
Retailer 6$5,704 NZD
Retailer 4$5,901 NZD
Retailer 5$6,157 NZD
Retailer 2$6,167 NZD
Retailer 9$6,408 NZD
Retailer 3$7,254 NZD
MOH London$9,870 NZD

44 data points across 9 retailers

9 retailers$4,255 NZD to $9,870 NZD

A
Cheapest Retailer
-
$4,255 NZD
SGD 3,241 SGD
A
Retailer 2
-
$5,240 NZD
$2,953 USD
View
A
Retailer 3
-
$5,704 NZD
$3,215 USD
View
A
Retailer 4
-
$5,901 NZD
$3,326 USD
View
A
Retailer 5
-
$6,157 NZD
$3,470 USD
View
A
Retailer 6
-
$6,167 NZD
£2,737 GBP
View
Retailer 7
-
$6,408 NZD
A$5,556 AUD
View
Price last confirmed 25 days ago
B+
Retailer 8
-
$7,254 NZD
ZAR 66,046 ZAR
View
Most Expensive
B+
MOH London
5F7F473E7 · Nov 1
$9,870 NZD
£4,380 GBP
View
8 more retailers have this diamond
Prices start from $4,255 NZDSave up to $5,614 NZD

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
$4,255 NZD