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Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 5556305352

Certificate GIA 5556305352

Diamond specifications and retailer prices

From $3,313 CAD
As of November 6, 2026
Save $3,820 CAD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,133 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5556305352. Listed at 17 retailers as of November 4, 2026, with prices from $3,313 to $7,133, a $3,820 spread on the same certified stone. MOH London lists it at $7,133. 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
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556305352
Dimensions7.51 × 5.76 × 4.19 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.51 mm5.76 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556305352
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 72.8%

Caratlytics Score

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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: $7,133 CAD|Low: $3,258 CAD|High: $7,453 CAD|Avg: $4,545 CAD|-4.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 4$3,313 CAD
Retailer 6$3,318 CAD
Retailer 12$3,536 CAD
Retailer 13$3,577 CAD
Retailer 14$3,594 CAD
Retailer 16$3,805 CAD
Retailer 8$3,861 CAD
Retailer 5$4,065 CAD
Retailer 2$4,149 CAD
Retailer 3$4,164 CAD
Retailer 7$4,386 CAD
Retailer 10$4,501 CAD
Retailer 9$4,978 CAD
Retailer 11$5,220 CAD
Retailer 15$6,833 CAD
MOH London$7,133 CAD

24 data points across 16 retailers

17 retailers$3,313 CAD to $7,133 CAD

A
Cheapest Retailer
-
$3,313 CAD
A
Retailer 2
-
$3,318 CAD
View
A
Retailer 3
-
$3,536 CAD
View
A
Retailer 4
-
$3,577 CAD
View
Final sale: no returns
A
Retailer 5
-
$3,594 CAD
View
A
Retailer 6
-
$3,805 CAD
View
B+
Retailer 7
-
$3,861 CAD
View
A
Retailer 8
-
$4,065 CAD
View
A
Retailer 9
-
$4,149 CAD
View
A
Retailer 10
-
$4,164 CAD
View
Retailer 11
-
$4,386 CAD
View
Price last confirmed 18 days ago
B+
Retailer 12
-
$4,501 CAD
View
B+
Retailer 13
-
$4,623 CAD
View
B+
Retailer 14
-
$4,978 CAD
View
B+
Retailer 15
-
$5,220 CAD
View
B
Retailer 16
-
$6,833 CAD
View
Most Expensive
B
MOH London
83913B52F · Nov 4
$7,133 CAD
£3,993 GBP
View
16 more retailers have this diamond
Prices start from $3,313 CADSave up to $3,820 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
$3,313 CAD