CaratHunter
Plans
Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 2557877387

Certificate GIA 2557877387

Diamond specifications and retailer prices

From $4,206 AUD
As of November 6, 2026
Save $5,523 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,729 AUD 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 $4,206 to $9,729, a $5,523 spread on the same certified stone. NZ Jewellers lists it at $9,729. 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: $9,729 AUD|Low: $4,206 AUD|High: $10,144 AUD|Avg: $6,098 AUD|-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$4,206 AUD
Retailer 3$4,436 AUD
Retailer 18$4,957 AUD
Retailer 9$5,370 AUD
Retailer 13$5,417 AUD
Retailer 16$5,584 AUD
Retailer 2$5,656 AUD
Retailer 6$5,727 AUD
Retailer 10$5,743 AUD
Retailer 14$5,797 AUD
Retailer 4$5,800 AUD
Retailer 11$5,894 AUD
Retailer 17$5,938 AUD
Retailer 15$6,136 AUD
Retailer 5$6,142 AUD
Retailer 7$6,445 AUD
Retailer 8$9,472 AUD
NZ Jewellers$9,729 AUD

15 data points across 18 retailers

18 retailers$4,206 AUD to $9,729 AUD

A
Cheapest Retailer
-
$4,206 AUD
A
Retailer 2
-
$4,436 AUD
View
Final sale: no returns
A
Retailer 3
-
$4,957 AUD
View
A
Retailer 4
-
$5,370 AUD
View
A
Retailer 5
-
$5,417 AUD
View
A
Retailer 6
-
$5,584 AUD
View
A
Retailer 7
-
$5,656 AUD
View
A
Retailer 8
-
$5,727 AUD
View
Retailer 9
-
$5,743 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$5,797 AUD
View
B+
Retailer 11
-
$5,800 AUD
View
A
Retailer 12
-
$5,894 AUD
View
A
Retailer 13
-
$5,938 AUD
View
A
Retailer 14
-
$6,136 AUD
View
A
Retailer 15
-
$6,142 AUD
View
B+
Retailer 16
-
$6,445 AUD
View
B
Retailer 17
-
$9,472 AUD
View
Most Expensive
B
NZ Jewellers
5e60bdd7-0f2a-4964-b8e6-500e298e64c6 · Nov 5
$9,729 AUD
$6,685 USD
View
17 more retailers have this diamond
Prices start from $4,206 AUDSave up to $5,523 AUD

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
$4,206 AUD