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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 $6,408 AUD
As of November 5, 2026
Save $8,182 AUD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $14,590 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 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 November 5, 2026, with prices from $6,408 to $14,590, a $8,182 spread on the same certified stone. NZ Jewellers lists it at $14,590. 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 5
Current: $14,590 AUD|Low: $6,408 AUD|High: $15,628 AUD|Avg: $9,595 AUD|-6.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 4$6,408 AUD
Retailer 8$7,481 AUD
Retailer 3$8,175 AUD
Retailer 2$8,724 AUD
Retailer 5$8,724 AUD
Retailer 6$9,175 AUD
Retailer 7$12,969 AUD
NZ Jewellers$14,590 AUD

16 data points across 8 retailers

8 retailers$6,408 AUD to $14,590 AUD

A
Cheapest Retailer
-
$6,408 AUD
Retailer 2
-
$7,481 AUD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$8,175 AUD
View
B+
Retailer 4
-
$8,724 AUD
View
B+
Retailer 5
-
$8,724 AUD
View
B+
Retailer 6
-
$9,175 AUD
View
B
Retailer 7
-
$12,969 AUD
View
Most Expensive
B
NZ Jewellers
ae436153-b22f-4c1b-8b06-8c7581951cda · Nov 5
$14,590 AUD
$10,025 USD
View
7 more retailers have this diamond
Prices start from $6,408 AUDSave up to $8,182 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
$6,408 AUD