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Radiant|Natural|GIA

1.50ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 3555303611

Certificate GIA 3555303611

Diamond specifications and retailer prices

From $4,678 NZD
HK$20,600 HKD
As of November 1, 2026
Save $6,310 NZD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,081 NZD at NZ Jewellers · As of September 25, 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 3555303611. Listed at 16 retailers as of October 30, 2026, with a 135% 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555303611
Dimensions7.71 × 5.69 × 3.85 mm
L/W Ratio1.36
Girdle conditionPolished
Top View
7.71 mm5.69 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555303611
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

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: $10,988 NZD|Low: $4,650 NZD|High: $11,458 NZD|Avg: $6,791 NZD|-4.1%
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 15$4,678 NZD
Retailer 14$4,714 NZD
Retailer 4$5,069 NZD
Retailer 12$5,074 NZD
Retailer 10$5,273 NZD
Retailer 7$5,428 NZD
Retailer 8$5,758 NZD
Retailer 13$5,802 NZD
Retailer 11$6,081 NZD
Retailer 5$6,201 NZD
Retailer 2$6,236 NZD
Retailer 9$7,383 NZD
Retailer 6$9,790 NZD
Retailer 3$10,402 NZD
NZ Jewellers$10,988 NZD

25 data points across 15 retailers

16 retailers$4,678 NZD to $10,988 NZD

A
Cheapest Retailer
-
$4,678 NZD
HK$20,600 HKD
A
Retailer 2
-
$4,714 NZD
$2,657 USD
View
A
Retailer 3
-
$5,069 NZD
$2,857 USD
View
A
Retailer 4
-
$5,074 NZD
$2,860 USD
View
A
Retailer 5
-
$5,273 NZD
$2,972 USD
View
Final sale: no returns
A
Retailer 6
-
$5,428 NZD
$3,059 USD
View
A
Retailer 7
-
$5,758 NZD
$3,245 USD
View
A
Retailer 8
-
$5,802 NZD
$3,270 USD
View
A
Retailer 9
-
$6,081 NZD
£2,699 GBP
View
Retailer 10
-
$6,201 NZD
$3,495 USD
View
Price last confirmed 13 days ago
A
Retailer 11
-
$6,236 NZD
£2,767 GBP
View
B+
Retailer 12
-
$7,383 NZD
€3,963 EUR
View
Retailer 13
-
$9,790 NZD
$5,518 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$10,402 NZD
£4,616 GBP
View
B
Retailer 15
-
$10,988 NZD
$6,193 USD
View
Most Expensive
NZ Jewellers
c4f1e1d9-c134-474b-97ce-425374f1214b · Sep 25
$12,081 NZD
$6,809 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $4,678 NZDSave up to $6,310 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
$4,678 NZD