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Oval|Natural|GIA

1.51ct J SI2 Oval Natural Diamond

VG • J/SI2 • GIA 2558151467

Certificate GIA 2558151467

Diamond specifications and retailer prices

From $4,321 AUD
As of November 6, 2026
Save $5,231 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,074 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2558151467. Listed at 17 retailers as of November 2, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2558151467
Dimensions8.81 × 6.44 × 4.06 mm
L/W Ratio1.37
Top View
8.81 mm6.44 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558151467
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.1%

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 6
Current: $4,544 AUD|Low: $4,266 AUD|High: $9,760 AUD|Avg: $5,873 AUD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$4,321 AUD
Retailer 1$4,544 AUD
Retailer 5$5,090 AUD
Retailer 2$5,273 AUD
Retailer 3$5,434 AUD
Retailer 6$5,785 AUD
Retailer 9$5,925 AUD
Retailer 10$5,996 AUD
Retailer 4$6,429 AUD
Retailer 7$9,552 AUD

32 data points across 10 retailers

17 retailers$4,321 AUD to $9,552 AUD

A
Cheapest Retailer
-
$4,321 AUD
A
Retailer 2
-
$4,544 AUD
View
B+
Retailer 3
-
$5,090 AUD
View
B+
Retailer 4
-
$5,273 AUD
View
Final sale: no returns
B+
Retailer 5
-
$5,311 AUD
View
B+
Retailer 6
-
$5,434 AUD
View
B+
Retailer 7
-
$5,616 AUD
View
Retailer 8
-
$5,782 AUD
View
Price last confirmed 29 days ago
Retailer 9
-
$5,782 AUD
View
Price last confirmed 38 days ago
Retailer 10
-
$5,782 AUD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
$5,785 AUD
View
B+
Retailer 12
-
$5,925 AUD
View
B+
Retailer 13
-
$5,996 AUD
View
B+
Retailer 14
-
$6,429 AUD
View
Retailer 15
-
$6,672 AUD
View
Price last confirmed 28 days ago
B
Retailer 16
-
$9,552 AUD
View
Most Expensive
NZ Jewellers
bc23d826-fff7-465c-98e1-1657262cea29 · Sep 30
$10,074 AUD
$6,922 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $4,321 AUDSave up to $5,231 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 Oval
$4,321 AUD