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Radiant|Natural|GIA

1.50ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6532746804

Certificate GIA 6532746804

Diamond specifications and retailer prices

From $6,370 AUD
As of November 6, 2026
Save $8,153 AUD (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $14,523 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532746804. Listed at 7 retailers as of November 5, 2026, with prices from $6,370 to $14,523, a $8,153 spread on the same certified stone. NZ Jewellers lists it at $14,523. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
Pavilion angle55.91°
OriginNatural
Grading LabGIA
CertificateGIA 6532746804
Dimensions7.85 × 5.70 × 3.88 mm
L/W Ratio1.38
Top View
7.85 mm5.70 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6532746804
Side View
Table 72.0%CrownGirdle: Very ThickPavilion 55.91°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $14,523 AUD|Low: $6,315 AUD|High: $14,523 AUD|Avg: $9,465 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 3$6,370 AUD
Retailer 4$8,016 AUD
Retailer 8$8,112 AUD
Retailer 5$8,684 AUD
Retailer 6$8,684 AUD
Retailer 7$8,786 AUD
Retailer 2$12,758 AUD
NZ Jewellers$14,523 AUD

11 data points across 8 retailers

7 retailers$6,370 AUD to $14,523 AUD

A
Cheapest Retailer
-
$6,370 AUD
A
Retailer 2
-
$8,016 AUD
View
Final sale: no returns
Retailer 3
-
$8,112 AUD
View
Price last confirmed 24 days ago
A
Retailer 4
-
$8,684 AUD
View
A
Retailer 5
-
$8,684 AUD
View
B+
Retailer 6
-
$12,758 AUD
View
Most Expensive
B
NZ Jewellers
6ef6a822-650e-4267-966d-239a26cf87f9 · Nov 5
$14,523 AUD
$9,979 USD
View
6 more retailers have this diamond
Prices start from $6,370 AUDSave up to $8,153 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
$6,370 AUD