CaratHunter
Plans
Princess|Natural|GIA

1.51ct I SI1 Princess Natural Diamond

EX • I/SI1 • GIA 5533515047

Certificate GIA 5533515047

Diamond specifications and retailer prices

From $6,228 AUD
As of November 4, 2026
Save $6,165 AUD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,393 AUD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.51ct natural princess diamond

This 1.51ct 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 stated by the retailer rather than the lab and certified by GIA 5533515047. Listed at 15 retailers as of November 2, 2026, with prices from $6,228 to $12,393, a $6,165 spread on the same certified stone. NZ Jewellers lists it at $12,393. 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

1.51
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.08°
Pavilion angle38.98°
OriginNatural
Grading LabGIA
CertificateGIA 5533515047
Dimensions6.59 × 6.42 × 4.40 mm
L/W Ratio1.03
Top View
6.59 mm6.42 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5533515047
Side View
Table 74.0%Crown 40.08°Girdle: MED-STKPavilion 38.98°Culet: NoneDepth 68.6%

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 4
Current: $12,393 AUD|Low: $6,228 AUD|High: $12,393 AUD|Avg: $8,944 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 6$6,228 AUD
Retailer 8$7,155 AUD
Retailer 2$7,395 AUD
Retailer 5$7,468 AUD
Retailer 4$7,968 AUD
Retailer 7$10,830 AUD
Retailer 3$11,770 AUD
NZ Jewellers$12,393 AUD

42 data points across 8 retailers

15 retailers$6,228 AUD to $12,393 AUD

A
Cheapest Retailer
-
$6,228 AUD
A
Retailer 2
-
$6,399 AUD
View
A
Retailer 3
-
$6,399 AUD
View
B+
Retailer 4
-
$6,891 AUD
View
B+
Retailer 5
-
$7,137 AUD
View
Retailer 6
-
$7,155 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$7,395 AUD
View
B+
Retailer 8
-
$7,468 AUD
View
B+
Retailer 9
-
$7,612 AUD
View
B+
Retailer 10
-
$7,612 AUD
View
B+
Retailer 11
-
$7,859 AUD
View
B+
Retailer 12
-
$7,968 AUD
View
B
Retailer 13
-
$10,830 AUD
View
B
Retailer 14
-
$11,770 AUD
View
Most Expensive
B
NZ Jewellers
723ea92a-c27c-4109-a731-a4a2f4267a39 · Nov 2
$12,393 AUD
$8,515 USD
View
14 more retailers have this diamond
Prices start from $6,228 AUDSave up to $6,165 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
1.51ct Princess
$6,228 AUD