CaratHunter
Plans
Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 7551678990

Certificate GIA 7551678990

Diamond specifications and retailer prices

From $4,239 CAD
As of November 6, 2026
Save $4,455 CAD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,694 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551678990. Listed at 11 retailers as of November 4, 2026, with prices from $4,239 to $8,694, a $4,455 spread on the same certified stone. MOH London lists it at $8,694. 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

1.51
Carat
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.63°
Pavilion angle36.04°
OriginNatural
Grading LabGIA
CertificateGIA 7551678990
Dimensions5.96 × 7.47 × 4.11 mm
L/W Ratio1.25
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
5.96 mm7.47 mm1.51 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551678990
Side View
Table 65.0%Crown 37.63°Girdle: Very ThickPavilion 36.04°Culet: NoneDepth 69.0%

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 6
Current: $8,694 CAD|Low: $3,882 CAD|High: $9,094 CAD|Avg: $5,752 CAD|-4.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$4,239 CAD
Retailer 6$4,341 CAD
Retailer 4$4,512 CAD
Retailer 2$4,692 CAD
Retailer 11$4,925 CAD
Retailer 7$4,932 CAD
Retailer 9$5,230 CAD
Retailer 8$5,287 CAD
Retailer 3$5,373 CAD
Retailer 10$5,473 CAD
MOH London$8,694 CAD

42 data points across 11 retailers

11 retailers$4,239 CAD to $8,694 CAD

A
Cheapest Retailer
-
$4,239 CAD
A
Retailer 2
-
$4,341 CAD
View
A
Retailer 3
-
$4,512 CAD
View
A
Retailer 4
-
$4,692 CAD
View
Final sale: no returns
A
Retailer 5
-
$4,925 CAD
View
A
Retailer 6
-
$4,932 CAD
View
A
Retailer 7
-
$5,081 CAD
View
A
Retailer 8
-
$5,230 CAD
View
A
Retailer 9
-
$5,287 CAD
View
A
Retailer 10
-
$5,473 CAD
View
Most Expensive
B
MOH London
ADAA463D8 · Nov 4
$8,694 CAD
£4,867 GBP
View
10 more retailers have this diamond
Prices start from $4,239 CADSave up to $4,455 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
$4,239 CAD