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Princess|Natural|GIA

1.51ct J SI2 Princess Natural Diamond

GD • J/SI2 • GIA 1427009335

Certificate GIA 1427009335

Diamond specifications and retailer prices

From $4,972 AUD
As of November 7, 2026
Save $7,829 AUD (61%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,800 AUD at Adiamor · As of November 7, 2026
View at Adiamor

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1427009335. Listed at 19 retailers as of November 7, 2026, with prices from $4,972 to $12,800, a $7,829 spread on the same certified stone. Adiamor lists it at $12,800. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1427009335
Dimensions6.32 × 6.28 × 4.59 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
6.32 mm6.28 mm1.51 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1427009335
Side View
Table 74.0%CrownGirdle: ThickPavilionCulet: NoneDepth 73.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $5,478 AUD|Low: $4,972 AUD|High: $11,394 AUD|Avg: $6,961 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 4$4,972 AUD
Retailer 9$5,011 AUD
Retailer 1$5,478 AUD
Retailer 10$6,006 AUD
Retailer 8$6,113 AUD
Retailer 3$6,338 AUD
Retailer 2$6,372 AUD
Retailer 6$6,776 AUD
Retailer 7$7,769 AUD
Retailer 5$10,936 AUD

34 data points across 10 retailers

19 retailers$4,972 AUD to $12,800 AUD

B+
Cheapest Retailer
-
$4,972 AUD
B+
Retailer 2
-
$5,011 AUD
View
B
Retailer 3
-
$5,478 AUD
View
B
Retailer 4
-
$5,947 AUD
View
B
Retailer 5
-
$6,006 AUD
View
B
Retailer 6
-
$6,113 AUD
View
B
Retailer 7
-
$6,338 AUD
View
B
Retailer 8
-
$6,370 AUD
View
B
Retailer 9
-
$6,372 AUD
View
Final sale: no returns
B
Retailer 10
-
$6,776 AUD
View
B
Retailer 11
-
$6,903 AUD
View
B
Retailer 12
-
$6,903 AUD
View
B
Retailer 13
-
$6,903 AUD
View
B
Retailer 14
-
$7,121 AUD
View
B
Retailer 15
-
$7,769 AUD
View
C
Retailer 16
-
$7,965 AUD
View
C
Retailer 17
-
$10,936 AUD
View
C
Retailer 18
-
$12,026 AUD
View
Most Expensive
C
Adiamor
D-64679085 · Nov 7
$12,800 AUD
$8,795 USD
View
18 more retailers have this diamond
Prices start from $4,972 AUDSave up to $7,829 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.

B+
1.51ct Princess
$4,972 AUD