CaratHunter
Plans
Princess|Natural|GIA

1.51ct E SI1 Princess Natural Diamond

ID • E/SI1 • GIA 2557333394

Certificate GIA 2557333394

Diamond specifications and retailer prices

From $6,626 AUD
$4,655 USD
As of October 29, 2026
Save $5,879 AUD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $12,505 AUD at NZ Jewellers · As of October 27, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557333394. Listed at 6 retailers as of October 27, 2026, with prices from $6,626 to $12,505, a $5,879 spread on the same certified stone. NZ Jewellers lists it at $12,505. 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557333394
Dimensions6.28 × 6.06 × 4.42 mm
L/W Ratio1.04
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
6.28 mm6.06 mm1.51 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557333394
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.9%

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 29
Current: $12,505 AUD|Low: $5,924 AUD|High: $13,833 AUD|Avg: $9,137 AUD|-9.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$6,626 AUD
Retailer 5$6,686 AUD
Retailer 2$6,736 AUD
Retailer 4$8,110 AUD
Retailer 7$9,073 AUD
Retailer 3$11,493 AUD
NZ Jewellers$12,505 AUD

40 data points across 7 retailers

6 retailers$6,626 AUD to $12,505 AUD

A
Cheapest Retailer
-
$6,626 AUD
$4,655 USD
Final sale: no returns
A
Retailer 2
-
$6,686 AUD
$4,697 USD
View
A
Retailer 3
-
$6,736 AUD
£3,726 GBP
View
A
Retailer 4
-
$8,110 AUD
€5,426 EUR
View
B+
Retailer 5
-
$11,493 AUD
£6,358 GBP
View
Most Expensive
B+
NZ Jewellers
cc730e1b-b493-4366-9939-abd6bdced65c · Oct 27
$12,505 AUD
$8,785 USD
View
5 more retailers have this diamond
Prices start from $6,626 AUDSave up to $5,879 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
$6,626 AUD