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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 2566543875

Certificate GIA 2566543875

Diamond specifications and retailer prices

From $5,793 AUD
₹386,653 INR
As of November 2, 2026
Save $7,001 AUD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,794 AUD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2566543875. Listed at 20 retailers as of October 30, 2026, with prices from $5,793 to $12,794, a $7,001 spread on the same certified stone. NZ Jewellers lists it at $12,794. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2566543875
Dimensions7.55 × 5.48 × 3.87 mm
L/W Ratio1.38
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Indented Natural, Natural
Top View
7.55 mm5.48 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566543875
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: 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 2
Current: $12,794 AUD|Low: $5,793 AUD|High: $13,399 AUD|Avg: $8,150 AUD|-4.5%
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
Retailer 19
November 2, 2026
Retailer 2$5,793 AUD
Retailer 7$6,310 AUD
Retailer 9$6,472 AUD
Retailer 6$6,671 AUD
Retailer 10$6,955 AUD
Retailer 4$7,170 AUD
Retailer 12$7,258 AUD
Retailer 14$7,464 AUD
Retailer 11$7,650 AUD
Retailer 18$7,650 AUD
Retailer 19$7,650 AUD
Retailer 3$7,727 AUD
Retailer 17$7,868 AUD
Retailer 8$7,976 AUD
Retailer 13$8,654 AUD
Retailer 5$8,825 AUD
Retailer 16$9,402 AUD
Retailer 15$12,183 AUD
NZ Jewellers$12,794 AUD

16 data points across 19 retailers

20 retailers$5,793 AUD to $12,794 AUD

A
Cheapest Retailer
-
$5,793 AUD
₹386,653 INR
B+
Retailer 2
-
$6,310 AUD
View
A
Retailer 3
-
$6,472 AUD
$4,536 USD
View
A
Retailer 4
-
$6,671 AUD
$4,675 USD
View
B+
Retailer 5
-
$6,955 AUD
$4,874 USD
View
B+
Retailer 6
-
$7,170 AUD
$5,025 USD
View
B+
Retailer 7
-
$7,258 AUD
£4,005 GBP
View
B+
Retailer 8
-
$7,464 AUD
£4,119 GBP
View
B+
Retailer 9
-
$7,650 AUD
$5,361 USD
View
B+
Retailer 10
-
$7,650 AUD
$5,361 USD
View
B+
Retailer 11
-
$7,650 AUD
$5,361 USD
View
B+
Retailer 12
-
$7,727 AUD
$5,415 USD
View
B+
Retailer 13
-
$7,868 AUD
$5,514 USD
View
B+
Retailer 14
-
$7,976 AUD
$5,590 USD
View
Retailer 15
-
$8,237 AUD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
$8,654 AUD
€5,776 EUR
View
B+
Retailer 17
-
$8,825 AUD
$6,185 USD
View
B
Retailer 18
-
$9,402 AUD
ZAR 106,451 ZAR
View
B
Retailer 19
-
$12,183 AUD
£6,723 GBP
View
Most Expensive
B
NZ Jewellers
f4309533-d2d6-4892-8a7a-c4b35b1cd322 · Oct 30
$12,794 AUD
$8,966 USD
View
19 more retailers have this diamond
Prices start from $5,793 AUDSave up to $7,001 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
$5,793 AUD