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Cushion|Natural|IGI

1.51ct I SI2 Cushion Natural Diamond

VG • I/SI2 • IGI 729536826

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 729536826

Diamond specifications and retailer prices

From $5,611 CAD
As of November 4, 2026
Save $4,611 CAD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,222 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 729536826. Listed at 11 retailers as of November 4, 2026, with prices from $5,611 to $10,222, a $4,611 spread on the same certified stone. MOH London lists it at $10,222. 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

1.51
Carat
I
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 729536826
Dimensions10.88 × 6.05 × 3.91 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Top View
10.88 mm6.05 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 729536826
Side View
Table 63.0%Crown 37.5°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 64.6%

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 4
Current: $10,222 CAD|Low: $3,834 CAD|High: $11,976 CAD|Avg: $7,008 CAD|-0.8%
MOH London
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 4$3,834 CAD
Retailer 10$5,611 CAD
Retailer 5$5,662 CAD
Retailer 12$5,735 CAD
Retailer 11$5,939 CAD
Retailer 2$6,242 CAD
Retailer 7$6,382 CAD
Retailer 8$6,435 CAD
Retailer 9$6,645 CAD
Retailer 6$7,252 CAD
MOH London$10,222 CAD
Retailer 3$11,976 CAD

17 data points across 12 retailers

11 retailers$5,611 CAD to $10,222 CAD

B+
Cheapest Retailer
-
$5,611 CAD
A
Retailer 2
-
$5,662 CAD
View
B+
Retailer 3
-
$5,735 CAD
View
B+
Retailer 4
-
$5,939 CAD
View
Final sale: no returns
B+
Retailer 5
-
$6,242 CAD
View
B+
Retailer 6
-
$6,382 CAD
View
Retailer 7
-
$6,435 CAD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$6,435 CAD
View
B+
Retailer 9
-
$6,645 CAD
View
B+
Retailer 10
-
$7,252 CAD
View
Most Expensive
B
MOH London
B4A56073B · Nov 4
$10,222 CAD
£5,722 GBP
View
10 more retailers have this diamond
Prices start from $5,611 CADSave up to $4,611 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
1.51ct Cushion
$5,611 CAD