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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 3555518161

Certificate GIA 3555518161

Diamond specifications and retailer prices

From $3,078 CAD
As of November 6, 2026
Save $3,730 CAD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,808 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 3555518161. Listed at 13 retailers as of November 4, 2026, with prices from $3,078 to $6,808, a $3,730 spread on the same certified stone. MOH London lists it at $6,808. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3555518161
Dimensions7.59 × 5.96 × 4.21 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
7.59 mm5.96 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3555518161
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.6%

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 6
Current: $6,808 CAD|Low: $3,042 CAD|High: $6,942 CAD|Avg: $4,366 CAD|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$3,078 CAD
Retailer 2$3,273 CAD
Retailer 6$3,609 CAD
Retailer 8$4,081 CAD
Retailer 9$4,273 CAD
Retailer 4$4,294 CAD
Retailer 10$4,445 CAD
Retailer 3$4,750 CAD
Retailer 5$4,981 CAD
MOH London$6,808 CAD

32 data points across 10 retailers

13 retailers$3,078 CAD to $6,808 CAD

A
Cheapest Retailer
-
$3,078 CAD
A
Retailer 2
-
$3,273 CAD
View
B+
Retailer 3
-
$3,609 CAD
View
B+
Retailer 4
-
$3,832 CAD
View
B+
Retailer 5
-
$3,833 CAD
View
B+
Retailer 6
-
$4,075 CAD
View
Retailer 7
-
$4,081 CAD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$4,273 CAD
View
B+
Retailer 9
-
$4,294 CAD
View
B+
Retailer 10
-
$4,445 CAD
View
B+
Retailer 11
-
$4,750 CAD
View
B+
Retailer 12
-
$4,981 CAD
View
Most Expensive
B
MOH London
94D18FCE6 · Nov 4
$6,808 CAD
£3,811 GBP
View
12 more retailers have this diamond
Prices start from $3,078 CADSave up to $3,730 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
$3,078 CAD