Radiant|Natural|GIA

1.50ct E SI1 Radiant Natural Diamond

EX • E/SI1

Diamond specifications and retailer prices

From $11,290 NZD
$6,363 USD
As of October 29, 2026
Save $11,292 NZD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $22,582 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 11 retailers as of October 29, 2026, with prices from $11,290 to $22,582, a $11,292 spread on the same certified stone. NZ Jewellers lists it at $22,582. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions7.31 × 5.64 × 4.02 mm
L/W Ratio1.30
Top View
7.31 mm5.64 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 71.0%CrownGirdle: ThickPavilionCulet: NDepth 71.3%

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 29
Current: $22,582 NZD|Low: $11,290 NZD|High: $23,093 NZD|Avg: $13,636 NZD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4$11,290 NZD
Retailer 7$11,720 NZD
Retailer 9$12,092 NZD
Retailer 5$12,232 NZD
Retailer 3$12,420 NZD
Retailer 2$12,670 NZD
Retailer 10$12,672 NZD
Retailer 8$13,488 NZD
Retailer 6$14,113 NZD
NZ Jewellers$22,582 NZD

33 data points across 10 retailers

11 retailers$11,290 NZD to $22,582 NZD

A
Cheapest Retailer
-
$11,290 NZD
$6,363 USD
A
Retailer 2
-
$11,720 NZD
CA$9,174 CAD
View
B+
Retailer 3
-
$12,092 NZD
$6,815 USD
View
B+
Retailer 4
-
$12,232 NZD
$6,894 USD
View
B+
Retailer 5
-
$12,420 NZD
$7,000 USD
View
B+
Retailer 6
-
$12,670 NZD
£5,623 GBP
View
B+
Retailer 7
-
$12,672 NZD
$7,142 USD
View
B+
Retailer 8
-
$13,488 NZD
$7,602 USD
View
B+
Retailer 9
-
$14,113 NZD
$7,954 USD
View
Retailer 10
-
$14,432 NZD
$8,134 USD
View
Price last confirmed 50 days ago
Most Expensive
B
NZ Jewellers
f30f0d1a-9a4c-4b4d-acae-ba5bcd4f6711 · Oct 30
$22,582 NZD
$12,727 USD
View
10 more retailers have this diamond
Prices start from $11,290 NZDSave up to $11,292 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
$11,290 NZD