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Radiant|Natural|GIA

1.50ct E SI2 Radiant Natural Diamond

EX • E/SI2 • GIA 1525404732

Certificate GIA 1525404732

Diamond specifications and retailer prices

From $10,348 NZD
$5,832 USD
As of October 30, 2026
Save $11,352 NZD (52%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $21,700 NZD at NZ Jewellers · As of October 30, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1525404732. Listed at 11 retailers as of October 30, 2026, with prices from $10,348 to $21,700, a $11,352 spread on the same certified stone. NZ Jewellers lists it at $21,700. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.41°
Pavilion angle30.35°
OriginNatural
Grading LabGIA
CertificateGIA 1525404732
Dimensions7.00 × 5.58 × 3.94 mm
L/W Ratio1.25
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
7.00 mm5.58 mm1.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525404732
Side View
Table 67.0%Crown 48.41°Girdle: THK-VTKPavilion 30.35°Culet: NDepth 70.6%

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: Oct 30
Current: $21,700 NZD|Low: $9,407 NZD|High: $21,700 NZD|Avg: $14,275 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6$10,348 NZD
Retailer 2$11,967 NZD
Retailer 9$11,977 NZD
Retailer 3$12,509 NZD
Retailer 8$12,974 NZD
Retailer 7$13,174 NZD
Retailer 5$14,155 NZD
Retailer 10$14,970 NZD
Retailer 4$18,755 NZD
NZ Jewellers$21,700 NZD

42 data points across 10 retailers

11 retailers$10,348 NZD to $21,700 NZD

A
Cheapest Retailer
-
$10,348 NZD
$5,832 USD
Final sale: no returns
A
Retailer 2
-
$11,967 NZD
£5,311 GBP
View
A
Retailer 3
-
$11,977 NZD
$6,750 USD
View
A
Retailer 4
-
$12,509 NZD
£5,551 GBP
View
B+
Retailer 5
-
$12,974 NZD
$7,312 USD
View
B+
Retailer 6
-
$13,174 NZD
$7,425 USD
View
B+
Retailer 7
-
$13,262 NZD
$7,474 USD
View
B+
Retailer 8
-
$14,155 NZD
€7,598 EUR
View
B+
Retailer 9
-
$14,970 NZD
$8,437 USD
View
B
Retailer 10
-
$18,755 NZD
£8,323 GBP
View
Most Expensive
B
NZ Jewellers
acbf649e-b122-46a1-b9ee-3c700530ff51 · Oct 30
$21,700 NZD
$12,230 USD
View
10 more retailers have this diamond
Prices start from $10,348 NZDSave up to $11,352 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
$10,348 NZD