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Marquise|Natural|IGI

0.51ct J VS1 Marquise Natural Diamond

VG • J/VS1 • IGI 731563150

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 731563150

Diamond specifications and retailer prices

From $432 AUD
As of November 6, 2026
Save $907 AUD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,227 AUD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 731563150. Listed at 15 retailers as of November 4, 2026, with a 210% 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

0.51
Carat
J
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle38.7°
OriginNatural
Grading LabIGI
CertificateIGI 731563150
Dimensions7.67 × 4.22 × 2.62 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizePointed
Top View
7.67 mm4.22 mm0.51 ctJ / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 731563150
Side View
Table 60.0%Crown 39.6°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $432 AUD|Low: $432 AUD|High: $1,358 AUD|Avg: $834 AUD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$432 AUD
Retailer 8$669 AUD
Retailer 2$671 AUD
Retailer 3$779 AUD
Retailer 7$815 AUD
Retailer 4$901 AUD
Retailer 6$1,049 AUD
Retailer 5$1,339 AUD

28 data points across 8 retailers

15 retailers$432 AUD to $1,339 AUD

A
Cheapest Retailer
-
$432 AUD
Retailer 2
-
$552 AUD
View
Price last confirmed 96 days ago
Retailer 3
-
$581 AUD
View
Price last confirmed 12 days ago
Retailer 4
-
$626 AUD
View
Price last confirmed 13 days ago
Retailer 5
-
$626 AUD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$669 AUD
View
Retailer 7
-
$671 AUD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$671 AUD
View
B+
Retailer 9
-
$771 AUD
View
B+
Retailer 10
-
$779 AUD
View
B+
Retailer 11
-
$815 AUD
View
B+
Retailer 12
-
$901 AUD
View
B+
Retailer 13
-
$1,049 AUD
View
B
Retailer 14
-
$1,339 AUD
View
Most Expensive
NZ Jewellers
fb043d31-9a0e-498f-b67a-677759f58363 · Oct 24
$2,227 AUD
$1,530 USD
View
Price last confirmed 13 days ago
14 more retailers have this diamond
Prices start from $432 AUDSave up to $907 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 Marquise
$432 AUD