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Princess|Natural|GIA

1.51ct G SI1 Princess Natural Diamond

EX • G/SI1 • GIA 7551578720

Certificate GIA 7551578720

Diamond specifications and retailer prices

From $5,779 AUD
$4,050 USD
As of November 1, 2026
Save $7,060 AUD (55%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $12,839 AUD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551578720. Listed at 32 retailers as of October 30, 2026, with prices from $5,779 to $12,839, a $7,060 spread on the same certified stone. NZ Jewellers lists it at $12,839. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle37.88°
OriginNatural
Grading LabGIA
CertificateGIA 7551578720
Dimensions6.28 × 6.18 × 4.45 mm
L/W Ratio1.02
Culet sizeNone
Top View
6.28 mm6.18 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551578720
Side View
Table 73.0%Crown 30.8°Girdle: MED-THKPavilion 37.88°Culet: NoneDepth 72.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $12,839 AUD|Low: $5,251 AUD|High: $12,839 AUD|Avg: $7,436 AUD
NZ Jewellers
Retailer 2
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Retailer 32
Retailer 33
November 2, 2026
Retailer 26$5,251 AUD
Retailer 27$5,662 AUD
Retailer 10$5,779 AUD
Retailer 9$5,997 AUD
Retailer 3$6,004 AUD
Retailer 32$6,063 AUD
Retailer 16$6,064 AUD
Retailer 19$6,139 AUD
Retailer 17$6,420 AUD
Retailer 25$6,524 AUD
Retailer 30$6,549 AUD
Retailer 4$6,888 AUD
Retailer 14$6,895 AUD
Retailer 18$6,940 AUD
Retailer 12$6,955 AUD
Retailer 31$6,955 AUD
Retailer 33$6,955 AUD
Retailer 5$7,073 AUD
Retailer 2$7,233 AUD
Retailer 21$7,326 AUD
Retailer 20$7,460 AUD
Retailer 24$7,491 AUD
Retailer 15$7,742 AUD
Retailer 6$7,791 AUD
Retailer 11$7,791 AUD
Retailer 22$7,884 AUD
Retailer 8$8,025 AUD
Retailer 13$8,170 AUD
Retailer 7$8,704 AUD
Retailer 29$9,437 AUD
Retailer 23$11,116 AUD
Retailer 28$12,227 AUD
NZ Jewellers$12,839 AUD

21 data points across 33 retailers

32 retailers$5,779 AUD to $12,839 AUD

A
Cheapest Retailer
-
$5,779 AUD
$4,050 USD
A
Retailer 2
-
$5,997 AUD
$4,203 USD
View
A
Retailer 3
-
$6,004 AUD
$4,208 USD
View
A
Retailer 4
-
$6,063 AUD
$4,249 USD
View
A
Retailer 5
-
$6,064 AUD
$4,250 USD
View
A
Retailer 6
-
$6,139 AUD
$4,302 USD
View
Retailer 7
-
$6,287 AUD
$4,406 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
$6,420 AUD
$4,499 USD
View
Final sale: no returns
A
Retailer 9
-
$6,549 AUD
$4,590 USD
View
A
Retailer 10
-
$6,557 AUD
$4,595 USD
View
A
Retailer 11
-
$6,888 AUD
CA$6,705 CAD
View
A
Retailer 12
-
$6,895 AUD
$4,832 USD
View
A
Retailer 13
-
$6,940 AUD
$4,864 USD
View
A
Retailer 14
-
$6,955 AUD
$4,874 USD
View
A
Retailer 15
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$6,955 AUD
$4,874 USD
View
A
Retailer 16
-
$6,955 AUD
$4,874 USD
View
A
Retailer 17
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$7,073 AUD
$4,957 USD
View
A
Retailer 18
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$7,233 AUD
£3,992 GBP
View
A
Retailer 19
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$7,326 AUD
$5,134 USD
View
A
Retailer 20
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$7,460 AUD
$5,228 USD
View
A
Retailer 21
-
$7,491 AUD
£4,134 GBP
View
A
Retailer 22
-
$7,742 AUD
$5,426 USD
View
A
Retailer 23
-
$7,791 AUD
$5,460 USD
View
B+
Retailer 24
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$7,791 AUD
$5,460 USD
View
B+
Retailer 25
-
$7,884 AUD
$5,525 USD
View
B+
Retailer 26
-
$8,025 AUD
$5,624 USD
View
B+
Retailer 27
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$8,170 AUD
€5,453 EUR
View
B+
Retailer 28
-
$8,704 AUD
$6,100 USD
View
B+
Retailer 29
-
$9,437 AUD
ZAR 106,840 ZAR
View
B+
Retailer 30
-
$11,116 AUD
$7,790 USD
View
B
Retailer 31
-
$12,227 AUD
£6,747 GBP
View
Most Expensive
B
NZ Jewellers
400288f9-cddc-40c9-9981-fa724fb59b2c · Oct 30
$12,839 AUD
$8,998 USD
View
31 more retailers have this diamond
Prices start from $5,779 AUDSave up to $7,060 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
$5,779 AUD