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Radiant|Natural|GIA

1.50ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6531975175

Certificate GIA 6531975175

Diamond specifications and retailer prices

From $4,063 AUD
As of November 4, 2026
Save $4,226 AUD (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,290 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531975175. Listed at 14 retailers as of November 4, 2026, with prices from $4,063 to $8,290, a $4,226 spread on the same certified stone. NZ Jewellers lists it at $8,290. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531975175
Dimensions8.08 × 5.43 × 3.84 mm
L/W Ratio1.49
Top View
8.08 mm5.43 mm1.50 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531975175
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 70.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $8,290 AUD|Low: $3,902 AUD|High: $8,290 AUD|Avg: $5,031 AUD|+2.4%
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
November 7, 2026
Retailer 4$4,063 AUD
Retailer 3$4,224 AUD
Retailer 14$4,362 AUD
Retailer 5$4,606 AUD
Retailer 7$4,679 AUD
Retailer 11$4,758 AUD
Retailer 13$4,758 AUD
Retailer 2$4,924 AUD
Retailer 12$4,941 AUD
Retailer 6$4,967 AUD
Retailer 10$5,490 AUD
Retailer 8$5,539 AUD
Retailer 9$5,807 AUD
NZ Jewellers$8,290 AUD

25 data points across 14 retailers

14 retailers$4,063 AUD to $8,290 AUD

B+
Cheapest Retailer
-
$4,063 AUD
B+
Retailer 2
-
$4,224 AUD
View
B+
Retailer 3
-
$4,362 AUD
View
B+
Retailer 4
-
$4,606 AUD
View
B+
Retailer 5
-
$4,679 AUD
View
B
Retailer 6
-
$4,758 AUD
View
Retailer 7
-
$4,758 AUD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$4,924 AUD
View
B
Retailer 9
-
$4,941 AUD
View
B
Retailer 10
-
$4,967 AUD
View
B
Retailer 11
-
$5,490 AUD
View
B
Retailer 12
-
$5,539 AUD
View
B
Retailer 13
-
$5,807 AUD
View
Most Expensive
B
NZ Jewellers
31d9b2a6-61a1-4c63-9edb-e90d664cb76a · Nov 5
$8,290 AUD
$5,696 USD
View
13 more retailers have this diamond
Prices start from $4,063 AUDSave up to $4,226 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.

B+
1.50ct Radiant
$4,063 AUD