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Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 2557877387

Certificate GIA 2557877387

Diamond specifications and retailer prices

From $5,213 NZD
As of November 6, 2026
Save $6,846 NZD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,059 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557877387. Listed at 18 retailers as of November 5, 2026, with prices from $5,213 to $12,059, a $6,846 spread on the same certified stone. NZ Jewellers lists it at $12,059. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557877387
Dimensions7.69 × 5.63 × 3.82 mm
L/W Ratio1.37
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.69 mm5.63 mm1.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2557877387
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 67.8%

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 6
Current: $12,059 NZD|Low: $5,213 NZD|High: $12,573 NZD|Avg: $7,559 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
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 12$5,213 NZD
Retailer 3$5,498 NZD
Retailer 18$6,144 NZD
Retailer 9$6,656 NZD
Retailer 13$6,714 NZD
Retailer 16$6,922 NZD
Retailer 2$7,010 NZD
Retailer 6$7,098 NZD
Retailer 10$7,118 NZD
Retailer 14$7,185 NZD
Retailer 4$7,189 NZD
Retailer 11$7,306 NZD
Retailer 17$7,360 NZD
Retailer 15$7,605 NZD
Retailer 5$7,612 NZD
Retailer 7$7,988 NZD
Retailer 8$11,740 NZD
NZ Jewellers$12,059 NZD

15 data points across 18 retailers

18 retailers$5,213 NZD to $12,059 NZD

A
Cheapest Retailer
-
$5,213 NZD
A
Retailer 2
-
$5,498 NZD
View
Final sale: no returns
A
Retailer 3
-
$6,144 NZD
View
A
Retailer 4
-
$6,656 NZD
View
A
Retailer 5
-
$6,714 NZD
View
A
Retailer 6
-
$6,922 NZD
View
A
Retailer 7
-
$7,010 NZD
View
A
Retailer 8
-
$7,098 NZD
View
Retailer 9
-
$7,118 NZD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$7,185 NZD
View
B+
Retailer 11
-
$7,189 NZD
View
A
Retailer 12
-
$7,306 NZD
View
A
Retailer 13
-
$7,360 NZD
View
A
Retailer 14
-
$7,605 NZD
View
A
Retailer 15
-
$7,612 NZD
View
B+
Retailer 16
-
$7,988 NZD
View
B
Retailer 17
-
$11,740 NZD
View
Most Expensive
B
NZ Jewellers
5e60bdd7-0f2a-4964-b8e6-500e298e64c6 · Nov 5
$12,059 NZD
$6,685 USD
View
17 more retailers have this diamond
Prices start from $5,213 NZDSave up to $6,846 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
$5,213 NZD