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Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 1538798283

Certificate GIA 1538798283

Diamond specifications and retailer prices

From $5,004 AUD
As of November 6, 2026
Save $5,082 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,603 AUD 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 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 1538798283. Listed at 15 retailers as of November 4, 2026, with a 102% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1538798283
Dimensions7.37 × 5.80 × 4.10 mm
L/W Ratio1.27
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.37 mm5.80 mm1.50 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538798283
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.6%

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: $10,603 AUD|Low: $5,004 AUD|High: $10,603 AUD|Avg: $6,635 AUD
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
November 7, 2026
Retailer 9$5,004 AUD
Retailer 7$5,420 AUD
Retailer 10$5,501 AUD
Retailer 3$5,513 AUD
Retailer 5$5,513 AUD
Retailer 12$5,726 AUD
Retailer 6$5,804 AUD
Retailer 2$6,060 AUD
Retailer 13$6,362 AUD
Retailer 8$6,734 AUD
Retailer 4$6,885 AUD
Retailer 11$10,086 AUD
NZ Jewellers$10,603 AUD

33 data points across 13 retailers

15 retailers$5,004 AUD to $10,086 AUD

A
Cheapest Retailer
-
$5,004 AUD
Final sale: no returns
A
Retailer 2
-
$5,420 AUD
View
A
Retailer 3
-
$5,501 AUD
View
Retailer 4
-
$5,513 AUD
View
Price last confirmed 22 days ago
Retailer 5
-
$5,513 AUD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$5,683 AUD
View
Retailer 7
-
$5,726 AUD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$5,804 AUD
View
B+
Retailer 9
-
$5,995 AUD
View
A
Retailer 10
-
$6,060 AUD
View
Retailer 11
-
$6,362 AUD
View
Price last confirmed 19 days ago
A
Retailer 12
-
$6,734 AUD
View
Retailer 13
-
$6,885 AUD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$10,086 AUD
View
Most Expensive
NZ Jewellers
25d13fe5-99a5-4628-96ba-bac961d4d88e · Oct 17
$10,603 AUD
$7,285 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from $5,004 AUDSave up to $5,082 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
$5,004 AUD