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Radiant|Natural|GIA

1.50ct J SI2 Radiant Natural Diamond

ID • J/SI2 • GIA 1545128714

Certificate GIA 1545128714

Diamond specifications and retailer prices

From $4,043 NZD
HK$17,800 HKD
As of November 1, 2026
Save $4,851 NZD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,118 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 1545128714. Listed at 17 retailers as of November 1, 2026, with a 120% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1545128714
Dimensions7.43 × 5.70 × 3.98 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.43 mm5.70 mm1.50 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1545128714
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: 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: $6,222 NZD|Low: $4,020 NZD|High: $9,216 NZD|Avg: $5,622 NZD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$4,043 NZD
Retailer 5$4,352 NZD
Retailer 3$4,845 NZD
Retailer 8$4,908 NZD
Retailer 11$5,571 NZD
Retailer 2$5,627 NZD
Retailer 4$5,686 NZD
Retailer 10$5,766 NZD
Retailer 9$6,137 NZD
Retailer 1$6,222 NZD
Retailer 6$8,894 NZD

33 data points across 11 retailers

17 retailers$4,043 NZD to $8,894 NZD

A
Cheapest Retailer
-
$4,043 NZD
HK$17,800 HKD
A
Retailer 2
-
$4,352 NZD
₹233,605 INR
View
A
Retailer 3
-
$4,845 NZD
SGD 3,690 SGD
View
A
Retailer 4
-
$4,908 NZD
$2,766 USD
View
Final sale: no returns
A
Retailer 5
-
$5,126 NZD
$2,889 USD
View
Retailer 6
-
$5,318 NZD
$2,997 USD
View
Price last confirmed 15 days ago
Retailer 7
-
$5,445 NZD
$3,069 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$5,464 NZD
A$4,738 AUD
View
A
Retailer 9
-
$5,571 NZD
$3,140 USD
View
A
Retailer 10
-
$5,627 NZD
SGD 4,286 SGD
View
Retailer 11
-
$5,655 NZD
$3,187 USD
View
Price last confirmed 16 days ago
A
Retailer 12
-
$5,686 NZD
£2,524 GBP
View
A
Retailer 13
-
$5,766 NZD
$3,250 USD
View
Retailer 14
-
$6,137 NZD
$3,459 USD
View
Price last confirmed 14 days ago
A
Retailer 15
-
$6,222 NZD
€3,340 EUR
View
B
Retailer 16
-
$8,894 NZD
£3,947 GBP
View
Most Expensive
NZ Jewellers
4034e5c5-8dda-4627-8644-3682de31d601 · Oct 17
$11,118 NZD
$6,266 USD
View
Price last confirmed 15 days ago
16 more retailers have this diamond
Prices start from $4,043 NZDSave up to $4,851 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
$4,043 NZD