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Radiant|Natural|GIA

1.50ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 7531645928

Certificate GIA 7531645928

Diamond specifications and retailer prices

From $3,925 NZD
As of November 6, 2026
Save $5,020 NZD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,776 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7531645928. Listed at 15 retailers as of November 4, 2026, with a 128% 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7531645928
Dimensions7.52 × 5.76 × 3.94 mm
L/W Ratio1.31
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Cavity, Needle, Indented Natural, Natural
Top View
7.52 mm5.76 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7531645928
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,419 NZD|Low: $3,925 NZD|High: $9,139 NZD|Avg: $5,488 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$3,925 NZD
Retailer 2$4,183 NZD
Retailer 5$4,650 NZD
Retailer 8$5,374 NZD
Retailer 1$5,419 NZD
Retailer 3$5,471 NZD
Retailer 4$5,958 NZD
Retailer 6$8,946 NZD

34 data points across 8 retailers

15 retailers$3,925 NZD to $8,946 NZD

A
Cheapest Retailer
-
$3,925 NZD
A
Retailer 2
-
$4,183 NZD
View
A
Retailer 3
-
$4,650 NZD
View
A
Retailer 4
-
$4,939 NZD
View
Retailer 5
-
$5,154 NZD
View
Price last confirmed 22 days ago
Retailer 6
-
$5,154 NZD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$5,239 NZD
View
Retailer 8
-
$5,352 NZD
View
Price last confirmed 22 days ago
A
Retailer 9
-
$5,374 NZD
View
A
Retailer 10
-
$5,419 NZD
View
A
Retailer 11
-
$5,471 NZD
View
Retailer 12
-
$5,947 NZD
View
Price last confirmed 19 days ago
A
Retailer 13
-
$5,958 NZD
View
B
Retailer 14
-
$8,946 NZD
View
Most Expensive
NZ Jewellers
89a0dc79-479f-4961-91dc-a03481122c15 · Oct 17
$10,776 NZD
$5,974 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from $3,925 NZDSave up to $5,020 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
$3,925 NZD