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Princess|Natural|GIA

1.50ct F SI2 Princess Natural Diamond

EX • F/SI2 • GIA 6551365989

Certificate GIA 6551365989

Diamond specifications and retailer prices

From $4,452 AUD
As of November 6, 2026
Save $6,012 AUD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,264 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural princess diamond

This 1.5ct natural princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551365989. Listed at 17 retailers as of November 2, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551365989
Dimensions6.38 × 6.31 × 4.47 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Indented Natural
Top View
6.38 mm6.31 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551365989
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.8%

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: $12,264 AUD|Low: $4,452 AUD|High: $12,310 AUD|Avg: $7,194 AUD|+1.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$4,452 AUD
Retailer 2$4,724 AUD
Retailer 9$5,443 AUD
Retailer 3$5,612 AUD
Retailer 6$5,830 AUD
Retailer 5$5,973 AUD
Retailer 8$6,111 AUD
Retailer 4$6,638 AUD
Retailer 10$10,464 AUD
Queensmith$12,264 AUD

36 data points across 10 retailers

17 retailers$4,452 AUD to $10,464 AUD

A
Cheapest Retailer
-
$4,452 AUD
A
Retailer 2
-
$4,724 AUD
View
A
Retailer 3
-
$5,443 AUD
View
Final sale: no returns
A
Retailer 4
-
$5,612 AUD
View
A
Retailer 5
-
$5,830 AUD
View
A
Retailer 6
-
$5,973 AUD
View
A
Retailer 7
-
$6,030 AUD
View
A
Retailer 8
-
$6,111 AUD
View
A
Retailer 9
-
$6,383 AUD
View
Retailer 10
-
$6,571 AUD
View
Price last confirmed 20 days ago
Retailer 11
-
$6,571 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
$6,571 AUD
View
Price last confirmed 23 days ago
A
Retailer 13
-
$6,638 AUD
View
Retailer 14
-
$7,581 AUD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
$10,464 AUD
View
Retailer 16
-
$11,448 AUD
View
Price last confirmed 21 days ago
Most Expensive
Queensmith
6551365989 · Oct 28
$12,264 AUD
£6,635 GBP
View
Price last confirmed 9 days ago
16 more retailers have this diamond
Prices start from $4,452 AUDSave up to $6,012 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
$4,452 AUD