Princess|Natural|IGI

1.50ct I SI1 Princess Natural Diamond

EX • I/SI1 • IGI 737543834

Shape and cutting style on the report: Princess cut

Certificate IGI 737543834

Diamond specifications and retailer prices

From $4,362 AUD
$3,057 USD
As of October 31, 2026
Save $4,199 AUD (49%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,561 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 737543834. Listed at 25 retailers as of October 27, 2026, with prices from $4,362 to $8,561, a $4,199 spread on the same certified stone. NZ Jewellers lists it at $8,561. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 737543834
Dimensions6.28 × 6.24 × 4.47 mm
L/W Ratio1.01
Culet sizePointed
Top View
6.28 mm6.24 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 737543834
Side View
Table 72.0%Crown 42.7°Girdle: MediumPavilion 40.6°Culet: NoneDepth 71.6%

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: Oct 31
Current: $5,752 AUD|Low: $4,158 AUD|High: $8,318 AUD|Avg: $5,278 AUD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$4,362 AUD
Retailer 9$4,438 AUD
Retailer 10$4,536 AUD
Retailer 12$4,587 AUD
Retailer 2$4,737 AUD
Retailer 3$4,914 AUD
Retailer 11$4,914 AUD
Retailer 5$5,186 AUD
Retailer 4$5,671 AUD
Retailer 1$5,752 AUD
Retailer 7$6,040 AUD
Retailer 6$8,218 AUD

37 data points across 12 retailers

25 retailers$4,362 AUD to $8,561 AUD

A
Cheapest Retailer
-
$4,362 AUD
$3,057 USD
Retailer 2
-
$4,438 AUD
$3,110 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$4,536 AUD
$3,179 USD
View
Final sale: no returns
A
Retailer 4
-
$4,587 AUD
$3,215 USD
View
A
Retailer 5
-
$4,737 AUD
$3,320 USD
View
Retailer 6
-
$4,914 AUD
$3,444 USD
View
Price last confirmed 49 days ago
Retailer 7
-
$4,914 AUD
$3,444 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$4,914 AUD
$3,444 USD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$4,914 AUD
$3,444 USD
View
Retailer 10
-
$4,914 AUD
$3,444 USD
View
Price last confirmed 32 days ago
A
Retailer 11
-
$4,914 AUD
$3,444 USD
View
A
Retailer 12
-
$5,103 AUD
$3,576 USD
View
Retailer 13
-
$5,103 AUD
$3,576 USD
View
Price last confirmed 33 days ago
A
Retailer 14
-
$5,120 AUD
$3,588 USD
View
A
Retailer 15
-
$5,186 AUD
£2,862 GBP
View
Retailer 16
-
$5,671 AUD
$3,974 USD
View
Price last confirmed 48 days ago
Retailer 17
-
$5,671 AUD
$3,974 USD
View
Price last confirmed 40 days ago
Retailer 18
-
$5,671 AUD
$3,974 USD
View
Price last confirmed 33 days ago
A
Retailer 19
-
$5,752 AUD
€3,839 EUR
View
A
Retailer 20
-
$6,040 AUD
ZAR 68,387 ZAR
View
B+
Retailer 21
-
$8,218 AUD
£4,535 GBP
View
Retailer 22
-
$8,561 AUD
$6,000 USD
View
Price last confirmed 48 days ago
Retailer 23
-
$8,561 AUD
$6,000 USD
View
Price last confirmed 38 days ago
Retailer 24
-
$8,561 AUD
$6,000 USD
View
Price last confirmed 33 days ago
Most Expensive
B
NZ Jewellers
f1bcd95a-569d-4706-89a4-dd9b3d98dc9e · Oct 27
$8,561 AUD
$6,000 USD
View
24 more retailers have this diamond
Prices start from $4,362 AUDSave up to $4,199 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 Princess
$4,362 AUD