CaratHunter
Plans
Princess|Natural|GIA

1.51ct F SI2 Princess Natural Diamond

EX • F/SI2 • GIA 5242021713

Certificate GIA 5242021713

Diamond specifications and retailer prices

From $4,132 AUD
$2,896 USD
As of October 31, 2026
Save $3,721 AUD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,854 AUD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242021713. Listed at 12 retailers as of October 31, 2026, with prices from $4,132 to $7,854, a $3,721 spread on the same certified stone. Helzberg Diamonds lists it at $7,854. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.31°
Pavilion angle39.65°
OriginNatural
Grading LabGIA
CertificateGIA 5242021713
Dimensions6.26 × 6.19 × 4.52 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.26 mm6.19 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242021713
Side View
Table 73.0%Crown 24.31°Girdle: STK-THKPavilion 39.65°Culet: NoneDepth 73.0%

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: $7,854 AUD|Low: $4,132 AUD|High: $8,517 AUD|Avg: $5,715 AUD|-7.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 9$4,132 AUD
Retailer 7$4,210 AUD
Retailer 11$4,455 AUD
Retailer 2$4,830 AUD
Retailer 10$4,890 AUD
Retailer 4$4,978 AUD
Retailer 13$5,265 AUD
Retailer 8$5,300 AUD
Retailer 3$5,410 AUD
Retailer 5$5,600 AUD
Retailer 6$6,450 AUD
Retailer 12$7,733 AUD
Helzberg Diamonds$7,854 AUD

31 data points across 13 retailers

12 retailers$4,132 AUD to $7,854 AUD

A
Cheapest Retailer
-
$4,132 AUD
$2,896 USD
A
Retailer 2
-
$4,210 AUD
SGD 3,987 SGD
View
A
Retailer 3
-
$4,455 AUD
$3,122 USD
View
A
Retailer 4
-
$4,830 AUD
£2,665 GBP
View
A
Retailer 5
-
$4,890 AUD
$3,427 USD
View
A
Retailer 6
-
$4,978 AUD
SGD 4,714 SGD
View
A
Retailer 7
-
$5,265 AUD
$3,690 USD
View
A
Retailer 8
-
$5,300 AUD
$3,714 USD
View
A
Retailer 9
-
$5,410 AUD
$3,791 USD
View
A
Retailer 10
-
$6,450 AUD
$4,520 USD
View
Retailer 11
-
$7,733 AUD
$5,420 USD
View
Price last confirmed 10 days ago
Most Expensive
B+
Helzberg Diamonds
XZRLIKIGIHNHJ · Nov 2
$7,854 AUD
$5,504 USD
View
11 more retailers have this diamond
Prices start from $4,132 AUDSave up to $3,721 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
$4,132 AUD