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Oval|Natural|GIA

0.51ct J SI2 Oval Natural Diamond

ID • J/SI2 • GIA 3445802867

Certificate GIA 3445802867

Diamond specifications and retailer prices

From $760 AUD
As of November 6, 2026
Save $1,138 AUD (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,582 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3445802867. Listed at 13 retailers as of November 4, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3445802867
Dimensions6.23 × 4.47 × 2.85 mm
L/W Ratio1.39
Top View
6.23 mm4.47 mm0.51 ctJ / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3445802867
Side View
Table 60.0%CrownGirdle: Ext. ThickPavilionCulet: NoneDepth 63.7%

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 6
Current: $2,582 AUD|Low: $696 AUD|High: $2,582 AUD|Avg: $1,109 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 16$760 AUD
Retailer 6$822 AUD
Retailer 14$824 AUD
Retailer 12$886 AUD
Retailer 13$886 AUD
Retailer 5$913 AUD
Retailer 7$917 AUD
Retailer 15$950 AUD
Retailer 2$977 AUD
Retailer 9$998 AUD
Retailer 4$1,004 AUD
Retailer 3$1,014 AUD
Retailer 11$1,223 AUD
Retailer 8$1,247 AUD
Retailer 10$1,898 AUD
NZ Jewellers$2,582 AUD

30 data points across 16 retailers

13 retailers$760 AUD to $1,898 AUD

B+
Cheapest Retailer
-
$760 AUD
Final sale: no returns
B+
Retailer 2
-
$824 AUD
View
B+
Retailer 3
-
$886 AUD
View
Retailer 4
-
$886 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$913 AUD
View
B
Retailer 6
-
$950 AUD
View
B+
Retailer 7
-
$977 AUD
View
B
Retailer 8
-
$998 AUD
View
B
Retailer 9
-
$1,004 AUD
View
B
Retailer 10
-
$1,014 AUD
View
B
Retailer 11
-
$1,223 AUD
View
B
Retailer 12
-
$1,898 AUD
View
Most Expensive
NZ Jewellers
1ce62622-6afd-47a9-a0a1-a32fa7210877 · Nov 5
$2,582 AUD
$1,774 USD
View
Price under review
12 more retailers have this diamond
Prices start from $760 AUDSave up to $1,138 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+
0.51ct Oval
$760 AUD