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Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 6565801280

Certificate GIA 6565801280

Diamond specifications and retailer prices

From $466 AUD
As of November 6, 2026
Save $1,933 AUD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,398 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded J 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 6565801280. Listed at 16 retailers as of November 5, 2026, with prices from $466 to $2,398, a $1,933 spread on the same certified stone. NZ Jewellers lists it at $2,398. 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

0.51
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6565801280
Dimensions6.32 × 4.47 × 2.85 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Knot
Top View
6.32 mm4.47 mm0.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565801280
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 63.7%

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: $2,398 AUD|Low: $466 AUD|High: $2,398 AUD|Avg: $916 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
November 6, 2026
Retailer 10$466 AUD
Retailer 2$572 AUD
Retailer 7$626 AUD
Retailer 9$643 AUD
Retailer 8$674 AUD
Retailer 15$715 AUD
Retailer 11$755 AUD
Retailer 4$757 AUD
Retailer 14$760 AUD
Retailer 16$787 AUD
Retailer 12$809 AUD
Retailer 13$883 AUD
Retailer 5$931 AUD
Retailer 3$969 AUD
Retailer 6$1,442 AUD
NZ Jewellers$2,398 AUD

5 data points across 16 retailers

16 retailers$466 AUD to $2,398 AUD

A
Cheapest Retailer
-
$466 AUD
A
Retailer 2
-
$572 AUD
View
Final sale: no returns
A
Retailer 3
-
$626 AUD
View
A
Retailer 4
-
$643 AUD
View
A
Retailer 5
-
$674 AUD
View
A
Retailer 6
-
$715 AUD
View
A
Retailer 7
-
$755 AUD
View
B+
Retailer 8
-
$757 AUD
View
A
Retailer 9
-
$760 AUD
View
B+
Retailer 10
-
$787 AUD
View
B+
Retailer 11
-
$809 AUD
View
B+
Retailer 12
-
$883 AUD
View
B+
Retailer 13
-
$931 AUD
View
B
Retailer 14
-
$969 AUD
View
B
Retailer 15
-
$1,442 AUD
View
Most Expensive
B
NZ Jewellers
9a4e8a39-a3b4-4111-8165-27ef4de888cb · Nov 5
$2,398 AUD
$1,648 USD
View
15 more retailers have this diamond
Prices start from $466 AUDSave up to $1,933 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
0.51ct Oval
$466 AUD