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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 $4,846 NZD
HK$21,300 HKD
As of November 1, 2026
Save $5,880 NZD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,174 NZD 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: $11,174 NZD|Low: $4,800 NZD|High: $11,400 NZD|Avg: $7,002 NZD|-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 2, 2026
Retailer 12$4,846 NZD
Retailer 2$5,159 NZD
Retailer 6$5,762 NZD
Retailer 13$5,918 NZD
Retailer 8$6,341 NZD
Retailer 3$6,414 NZD
Retailer 7$6,544 NZD
Retailer 4$6,672 NZD
Retailer 10$6,703 NZD
Retailer 5$6,729 NZD
Retailer 15$6,772 NZD
Retailer 14$7,401 NZD
Retailer 9$7,506 NZD
Retailer 11$10,726 NZD
NZ Jewellers$11,174 NZD

24 data points across 15 retailers

18 retailers$4,846 NZD to $10,726 NZD

A
Cheapest Retailer
-
$4,846 NZD
HK$21,300 HKD
A
Retailer 2
-
$5,159 NZD
₹276,438 INR
View
A
Retailer 3
-
$5,762 NZD
SGD 4,381 SGD
View
A
Retailer 4
-
$5,918 NZD
$3,330 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,045 NZD
$3,401 USD
View
A
Retailer 6
-
$6,341 NZD
£2,809 GBP
View
Retailer 7
-
$6,414 NZD
$3,609 USD
View
Price last confirmed 15 days ago
B+
Retailer 8
-
$6,421 NZD
A$5,558 AUD
View
Retailer 9
-
$6,544 NZD
$3,682 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$6,672 NZD
$3,754 USD
View
B+
Retailer 11
-
$6,703 NZD
£2,970 GBP
View
B+
Retailer 12
-
$6,729 NZD
SGD 5,116 SGD
View
B+
Retailer 13
-
$6,772 NZD
$3,810 USD
View
Retailer 14
-
$6,795 NZD
$3,823 USD
View
Price last confirmed 16 days ago
Retailer 15
-
$7,401 NZD
$4,164 USD
View
Price last confirmed 14 days ago
B+
Retailer 16
-
$7,506 NZD
€4,022 EUR
View
B
Retailer 17
-
$10,726 NZD
£4,752 GBP
View
Most Expensive
NZ Jewellers
e1ade95d-5f3e-4c6c-a1b9-4c83c4ad66e6 · Oct 17
$11,174 NZD
$6,287 USD
View
Price last confirmed 15 days ago
17 more retailers have this diamond
Prices start from $4,846 NZDSave up to $5,880 NZD

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
$4,846 NZD