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Radiant|Natural|GIA

1.50ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 5553842991

Certificate GIA 5553842991

Diamond specifications and retailer prices

From $3,881 AUD
HK$21,300 HKD
As of November 1, 2026
Save $4,710 AUD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,950 AUD at NZ Jewellers · As of October 17, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553842991. Listed at 18 retailers as of November 1, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553842991
Dimensions7.42 × 5.72 × 3.99 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Knot, Feather, Crystal, Cavity, Needle, Natural
Top View
7.42 mm5.72 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553842991
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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 1
Current: $8,950 AUD|Low: $3,845 AUD|High: $9,131 AUD|Avg: $5,607 AUD|-2.0%
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
Retailer 15
November 1, 2026
Retailer 11$3,881 AUD
Retailer 2$4,133 AUD
Retailer 6$4,615 AUD
Retailer 13$4,741 AUD
Retailer 8$5,080 AUD
Retailer 3$5,138 AUD
Retailer 7$5,242 AUD
Retailer 4$5,344 AUD
Retailer 10$5,369 AUD
Retailer 5$5,390 AUD
Retailer 15$5,424 AUD
Retailer 14$5,928 AUD
Retailer 12$6,013 AUD
Retailer 9$8,591 AUD
NZ Jewellers$8,950 AUD

24 data points across 15 retailers

18 retailers$3,881 AUD to $8,591 AUD

A
Cheapest Retailer
-
$3,881 AUD
HK$21,300 HKD
A
Retailer 2
-
$4,133 AUD
₹276,528 INR
View
A
Retailer 3
-
$4,615 AUD
SGD 4,381 SGD
View
A
Retailer 4
-
$4,741 AUD
$3,330 USD
View
Final sale: no returns
B+
Retailer 5
-
$4,842 AUD
$3,401 USD
View
A
Retailer 6
-
$5,080 AUD
£2,810 GBP
View
Retailer 7
-
$5,138 AUD
$3,609 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$5,143 AUD
View
Retailer 9
-
$5,242 AUD
$3,682 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$5,344 AUD
$3,754 USD
View
B+
Retailer 11
-
$5,369 AUD
£2,970 GBP
View
B+
Retailer 12
-
$5,390 AUD
SGD 5,116 SGD
View
B+
Retailer 13
-
$5,424 AUD
$3,810 USD
View
Retailer 14
-
$5,442 AUD
$3,823 USD
View
Price last confirmed 16 days ago
Retailer 15
-
$5,928 AUD
$4,164 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
$6,013 AUD
€4,023 EUR
View
B
Retailer 17
-
$8,591 AUD
£4,752 GBP
View
Most Expensive
NZ Jewellers
e1ade95d-5f3e-4c6c-a1b9-4c83c4ad66e6 · Oct 17
$8,950 AUD
$6,287 USD
View
Price last confirmed 14 days ago
17 more retailers have this diamond
Prices start from $3,881 AUDSave up to $4,710 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
$3,881 AUD