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Cushion|Natural|IGI

0.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • IGI 720529895

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 720529895

Diamond specifications and retailer prices

From $364 CAD
As of November 6, 2026
Save $772 CAD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,136 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 720529895. Listed at 9 retailers as of November 1, 2026, with prices from $364 to $1,136, a $772 spread on the same certified stone. MOH London lists it at $1,136. 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
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 720529895
Dimensions9.05 × 4.14 × 2.42 mm
L/W Ratio2.19
Girdle conditionFaceted
Culet sizePointed
Top View
9.05 mm4.14 mm0.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 720529895
Side View
Table 62.0%Crown 31.6°Girdle: THN-STKPavilion 40.3°Culet: NoneDepth 58.5%

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: $1,136 CAD|Low: $364 CAD|High: $1,149 CAD|Avg: $709 CAD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$364 CAD
Retailer 3$601 CAD
Retailer 5$654 CAD
Retailer 7$762 CAD
Retailer 6$802 CAD
Retailer 4$904 CAD
MOH London$1,136 CAD

28 data points across 7 retailers

9 retailers$364 CAD to $1,136 CAD

A
Cheapest Retailer
-
$364 CAD
Retailer 2
-
$530 CAD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$601 CAD
View
B+
Retailer 4
-
$654 CAD
View
B+
Retailer 5
-
$675 CAD
View
B+
Retailer 6
-
$762 CAD
View
B+
Retailer 7
-
$802 CAD
View
B+
Retailer 8
-
$904 CAD
View
Most Expensive
B
MOH London
48F9D8D51 · Nov 1
$1,136 CAD
£636 GBP
View
8 more retailers have this diamond
Prices start from $364 CADSave up to $772 CAD

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 Cushion
$364 CAD