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Radiant|Natural|HRD

1.50ct K SI2 Radiant Natural Diamond

EX • K/SI2 • HRD 230000003590

Certificate HRD 230000003590

Diamond specifications and retailer prices

From $2,880 AUD
As of November 5, 2026
Save $4,144 AUD (59%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,024 AUD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by HRD 230000003590. Listed at 7 retailers as of November 5, 2026, with prices from $2,880 to $7,024, a $4,144 spread on the same certified stone. NZ Jewellers lists it at $7,024. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle46.41°
Pavilion angle59.72°
OriginNatural
Grading LabHRD
CertificateHRD 230000003590
Dimensions7.49 × 5.78 × 3.99 mm
L/W Ratio1.30
Top View
7.49 mm5.78 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 230000003590
Side View
Table 65.0%Crown 46.41°Girdle: MediumPavilion 59.72°CuletDepth 69.0%

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 5
Current: $7,024 AUD|Low: $2,880 AUD|High: $7,024 AUD|Avg: $4,228 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$2,880 AUD
Retailer 7$2,911 AUD
Retailer 4$3,013 AUD
Retailer 2$4,097 AUD
Retailer 6$4,401 AUD
Retailer 3$5,030 AUD
NZ Jewellers$7,024 AUD

27 data points across 7 retailers

7 retailers$2,880 AUD to $7,024 AUD

A
Cheapest Retailer
-
$2,880 AUD
A
Retailer 2
-
$2,911 AUD
View
A
Retailer 3
-
$3,013 AUD
View
B+
Retailer 4
-
$4,097 AUD
View
B+
Retailer 5
-
$4,401 AUD
View
B+
Retailer 6
-
$5,030 AUD
View
Most Expensive
B
NZ Jewellers
d5129621-53b1-45b1-956b-45380cdfd710 · Nov 5
$7,024 AUD
$4,826 USD
View
6 more retailers have this diamond
Prices start from $2,880 AUDSave up to $4,144 AUD

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
$2,880 AUD