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Princess|Natural|GIA

1.51ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 1565584351

Certificate GIA 1565584351

Diamond specifications and retailer prices

From $6,341 AUD
$4,444 USD
As of November 1, 2026
Save $4,532 AUD (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,604 AUD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded F 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 1565584351. Listed at 15 retailers as of November 1, 2026, with a 71% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.76°
Pavilion angle38.99°
OriginNatural
Grading LabGIA
CertificateGIA 1565584351
Dimensions6.21 × 6.17 × 4.53 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.21 mm6.17 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565584351
Side View
Table 72.0%Crown 28.76°Girdle: STK-VTKPavilion 38.99°Culet: NDepth 73.4%

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 1
Current: $7,133 AUD|Low: $6,341 AUD|High: $11,604 AUD|Avg: $8,104 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 3, 2026
Retailer 2$6,341 AUD
Retailer 8$6,523 AUD
Retailer 5$6,562 AUD
Retailer 13$6,672 AUD
Retailer 9$6,721 AUD
Retailer 4$6,875 AUD
Retailer 1$7,133 AUD
Retailer 10$7,905 AUD
Retailer 3$7,910 AUD
Retailer 6$8,110 AUD
Retailer 7$9,830 AUD
Retailer 12$10,623 AUD
Retailer 11$10,873 AUD
Wholesale Diamonds Direct$11,604 AUD

19 data points across 14 retailers

15 retailers$6,341 AUD to $10,873 AUD

A
Cheapest Retailer
-
$6,341 AUD
$4,444 USD
A
Retailer 2
-
$6,417 AUD
SGD 6,077 SGD
View
A
Retailer 3
-
$6,523 AUD
$4,571 USD
View
A
Retailer 4
-
$6,562 AUD
$4,599 USD
View
A
Retailer 5
-
$6,672 AUD
$4,676 USD
View
A
Retailer 6
-
$6,721 AUD
$4,710 USD
View
A
Retailer 7
-
$6,875 AUD
SGD 6,511 SGD
View
A
Retailer 8
-
$7,133 AUD
£3,936 GBP
View
B+
Retailer 9
-
$7,905 AUD
$5,540 USD
View
B+
Retailer 10
-
$7,910 AUD
$5,543 USD
View
B+
Retailer 11
-
$8,110 AUD
€5,413 EUR
View
B+
Retailer 12
-
$9,830 AUD
$6,889 USD
View
B+
Retailer 13
-
$10,623 AUD
$7,445 USD
View
B+
Retailer 14
-
$10,873 AUD
$7,620 USD
View
Most Expensive
Wholesale Diamonds Direct
547057982 · Oct 27
$11,604 AUD
$8,132 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from $6,341 AUDSave up to $4,532 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
$6,341 AUD