CaratHunter
Plans
Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 7558451105

Certificate GIA 7558451105

Diamond specifications and retailer prices

From $6,187 NZD
As of November 7, 2026
Save $5,018 NZD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $11,206 NZD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558451105. Listed at 11 retailers as of November 5, 2026, with prices from $6,187 to $11,206, a $5,018 spread on the same certified stone. NZ Jewellers lists it at $11,206. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558451105
Dimensions7.75 × 5.36 × 3.81 mm
L/W Ratio1.45
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Pinpoint
Top View
7.75 mm5.36 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558451105
Side View
Table 64.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 71.0%

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 7
Current: $11,206 NZD|Low: $6,187 NZD|High: $11,206 NZD|Avg: $7,616 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3$6,187 NZD
Retailer 4$6,240 NZD
Retailer 8$6,431 NZD
Retailer 10$6,431 NZD
Retailer 2$6,655 NZD
Retailer 11$6,678 NZD
Retailer 9$7,421 NZD
Retailer 5$7,486 NZD
Retailer 6$7,851 NZD
Retailer 7$10,726 NZD
NZ Jewellers$11,206 NZD

33 data points across 11 retailers

11 retailers$6,187 NZD to $11,206 NZD

A
Cheapest Retailer
-
$6,187 NZD
A
Retailer 2
-
$6,240 NZD
View
Retailer 3
-
$6,431 NZD
View
Price last confirmed 13 days ago
A
Retailer 4
-
$6,431 NZD
View
A
Retailer 5
-
$6,655 NZD
View
B+
Retailer 6
-
$6,678 NZD
View
B+
Retailer 7
-
$7,421 NZD
View
B+
Retailer 8
-
$7,486 NZD
View
B+
Retailer 9
-
$7,851 NZD
View
B
Retailer 10
-
$10,726 NZD
View
Most Expensive
B
NZ Jewellers
1930ef7e-aff1-4fa7-af8f-e59a4e7b45cd · Nov 5
$11,206 NZD
$6,212 USD
View
10 more retailers have this diamond
Prices start from $6,187 NZDSave up to $5,018 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
$6,187 NZD