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Princess|Natural|GIA

1.51ct H SI2 Princess Natural Diamond

EX • H/SI2 • GIA 3565414270

Certificate GIA 3565414270

Diamond specifications and retailer prices

From $4,256 AUD
$2,989 USD
As of October 31, 2026
Save $3,836 AUD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,092 AUD at Helzberg Diamonds · As of October 31, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3565414270. Listed at 13 retailers as of October 31, 2026, with prices from $4,256 to $8,092, a $3,836 spread on the same certified stone. Helzberg Diamonds lists it at $8,092. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle24.75°
Pavilion angle39.58°
OriginNatural
Grading LabGIA
CertificateGIA 3565414270
Dimensions6.34 × 6.25 × 4.44 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.34 mm6.25 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3565414270
Side View
Table 73.0%Crown 24.75°Girdle: MED-THKPavilion 39.58°Culet: NoneDepth 71.0%

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: $8,092 AUD|Low: $4,256 AUD|High: $8,092 AUD|Avg: $5,563 AUD
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 1, 2026
Retailer 3$4,256 AUD
Retailer 10$4,335 AUD
Retailer 11$4,588 AUD
Retailer 9$4,620 AUD
Retailer 8$4,634 AUD
Retailer 6$5,014 AUD
Retailer 5$5,125 AUD
Retailer 13$5,448 AUD
Retailer 4$5,550 AUD
Retailer 7$5,692 AUD
Retailer 2$6,643 AUD
Retailer 12$7,869 AUD
Helzberg Diamonds$8,092 AUD

33 data points across 13 retailers

13 retailers$4,256 AUD to $8,092 AUD

A
Cheapest Retailer
-
$4,256 AUD
$2,989 USD
A
Retailer 2
-
$4,335 AUD
SGD 4,115 SGD
View
A
Retailer 3
-
$4,588 AUD
$3,223 USD
View
A
Retailer 4
-
$4,620 AUD
$3,245 USD
View
A
Retailer 5
-
$4,634 AUD
$3,255 USD
View
A
Retailer 6
-
$5,014 AUD
£2,774 GBP
View
A
Retailer 7
-
$5,125 AUD
SGD 4,865 SGD
View
A
Retailer 8
-
$5,448 AUD
$3,827 USD
View
A
Retailer 9
-
$5,550 AUD
$3,899 USD
View
A
Retailer 10
-
$5,692 AUD
€3,808 EUR
View
B+
Retailer 11
-
$6,643 AUD
$4,666 USD
View
B+
Retailer 12
-
$7,869 AUD
$5,528 USD
View
Most Expensive
B
Helzberg Diamonds
XZRJLMLKHKING · Oct 31
$8,092 AUD
$5,684 USD
View
12 more retailers have this diamond
Prices start from $4,256 AUDSave up to $3,836 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
$4,256 AUD