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Oval|Natural|IGI

0.51ct J SI2 Oval Natural Diamond

VG • J/SI2 • IGI 800673931

Shape and cutting style on the report: Oval brilliant

Certificate IGI 800673931

Diamond specifications and retailer prices

From $534 AUD
As of November 6, 2026
Save $1,688 AUD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,222 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 very-good cut grade and certified by IGI 800673931. Listed at 11 retailers as of November 5, 2026, with prices from $534 to $2,222, a $1,688 spread on the same certified stone. NZ Jewellers lists it at $2,222. 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

0.51
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle34.1°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 800673931
Dimensions6.48 × 4.49 × 2.70 mm
L/W Ratio1.44
Girdle conditionFaceted
Top View
6.48 mm4.49 mm0.51 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 800673931
Side View
Table 61.0%Crown 34.1°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 60.1%

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 6
Current: $2,222 AUD|Low: $444 AUD|High: $2,222 AUD|Avg: $865 AUD|+10.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8$534 AUD
Retailer 4$569 AUD
Retailer 9$579 AUD
Retailer 7$624 AUD
Retailer 10$624 AUD
Retailer 12$669 AUD
Retailer 2$688 AUD
Retailer 3$770 AUD
Retailer 11$814 AUD
Retailer 6$1,051 AUD
Retailer 5$1,336 AUD
NZ Jewellers$2,222 AUD

45 data points across 12 retailers

11 retailers$534 AUD to $2,222 AUD

B+
Cheapest Retailer
-
$534 AUD
Final sale: no returns
B+
Retailer 2
-
$579 AUD
View
Retailer 3
-
$624 AUD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$624 AUD
View
B+
Retailer 5
-
$669 AUD
View
B+
Retailer 6
-
$688 AUD
View
B+
Retailer 7
-
$770 AUD
View
B
Retailer 8
-
$814 AUD
View
B
Retailer 9
-
$1,051 AUD
View
B
Retailer 10
-
$1,336 AUD
View
Most Expensive
C
NZ Jewellers
59f33a37-6632-4c0e-bf8a-df1f3f5e7ae7 · Nov 5
$2,222 AUD
$1,527 USD
View
10 more retailers have this diamond
Prices start from $534 AUDSave up to $1,688 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
$534 AUD