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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2556551357

Certificate GIA 2556551357

Diamond specifications and retailer prices

From $3,601 CAD
As of November 6, 2026
Save $4,363 CAD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,964 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct 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 2556551357. Listed at 14 retailers as of November 4, 2026, with prices from $3,601 to $7,964, a $4,363 spread on the same certified stone. MOH London lists it at $7,964. 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

1.50
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556551357
Dimensions8.26 × 5.54 × 3.93 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
8.26 mm5.54 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556551357
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.9%

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: $7,964 CAD|Low: $3,601 CAD|High: $8,078 CAD|Avg: $5,156 CAD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$3,601 CAD
Retailer 2$3,805 CAD
Retailer 6$4,251 CAD
Retailer 3$4,632 CAD
Retailer 7$4,944 CAD
Retailer 10$4,978 CAD
Retailer 8$5,130 CAD
Retailer 4$5,559 CAD
Retailer 5$5,828 CAD
MOH London$7,964 CAD

26 data points across 10 retailers

14 retailers$3,601 CAD to $7,964 CAD

A
Cheapest Retailer
-
$3,601 CAD
A
Retailer 2
-
$3,805 CAD
View
B+
Retailer 3
-
$4,251 CAD
View
B+
Retailer 4
-
$4,474 CAD
View
B+
Retailer 5
-
$4,480 CAD
View
B+
Retailer 6
-
$4,632 CAD
View
B+
Retailer 7
-
$4,743 CAD
View
Retailer 8
-
$4,805 CAD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$4,944 CAD
View
B+
Retailer 10
-
$4,978 CAD
View
B+
Retailer 11
-
$5,130 CAD
View
B+
Retailer 12
-
$5,559 CAD
View
B
Retailer 13
-
$5,828 CAD
View
Most Expensive
B
MOH London
B558C4967 · Nov 4
$7,964 CAD
£4,458 GBP
View
13 more retailers have this diamond
Prices start from $3,601 CADSave up to $4,363 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
1.50ct Cushion
$3,601 CAD