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Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 2434559881

Certificate GIA 2434559881

Diamond specifications and retailer prices

From $5,048 AUD
HK$27,700 HKD
As of November 1, 2026
Save $5,672 AUD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,720 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2434559881. Listed at 16 retailers as of October 30, 2026, with prices from $5,048 to $10,720, a $5,672 spread on the same certified stone. NZ Jewellers lists it at $10,720. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2434559881
Dimensions7.19 × 7.16 × 4.58 mm
L/W Ratio1.00
Top View
7.19 mm7.16 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2434559881
Side View
Table 58.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.8%

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: $10,720 AUD|Low: $5,011 AUD|High: $10,720 AUD|Avg: $6,711 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 14$5,048 AUD
Retailer 7$5,415 AUD
Retailer 4$5,679 AUD
Retailer 5$5,837 AUD
Retailer 15$6,153 AUD
Retailer 16$6,153 AUD
Retailer 17$6,153 AUD
Retailer 8$6,220 AUD
Retailer 2$6,256 AUD
Retailer 9$6,349 AUD
Retailer 6$6,365 AUD
Retailer 12$6,934 AUD
Retailer 3$7,099 AUD
Retailer 10$7,350 AUD
Retailer 13$7,564 AUD
Retailer 11$9,801 AUD
NZ Jewellers$10,720 AUD

32 data points across 17 retailers

16 retailers$5,048 AUD to $10,720 AUD

A
Cheapest Retailer
-
$5,048 AUD
HK$27,700 HKD
B+
Retailer 2
-
$5,415 AUD
$3,804 USD
View
B+
Retailer 3
-
$5,679 AUD
$3,989 USD
View
Final sale: no returns
B+
Retailer 4
-
$5,837 AUD
$4,100 USD
View
B+
Retailer 5
-
$6,153 AUD
$4,322 USD
View
B+
Retailer 6
-
$6,153 AUD
$4,322 USD
View
B+
Retailer 7
-
$6,153 AUD
$4,322 USD
View
B+
Retailer 8
-
$6,256 AUD
£3,460 GBP
View
B+
Retailer 9
-
$6,349 AUD
$4,460 USD
View
B+
Retailer 10
-
$6,365 AUD
$4,471 USD
View
B+
Retailer 11
-
$6,934 AUD
€4,639 EUR
View
B
Retailer 12
-
$7,099 AUD
$4,987 USD
View
B
Retailer 13
-
$7,350 AUD
£4,065 GBP
View
B
Retailer 14
-
$7,564 AUD
ZAR 85,832 ZAR
View
B
Retailer 15
-
$9,801 AUD
£5,421 GBP
View
Most Expensive
B
NZ Jewellers
0fc4e9aa-7d9d-4d58-800a-c3cdbba0feb4 · Oct 30
$10,720 AUD
$7,530 USD
View
15 more retailers have this diamond
Prices start from $5,048 AUDSave up to $5,672 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 Round
$5,048 AUD