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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 1558366202

Certificate GIA 1558366202

Diamond specifications and retailer prices

From $3,493 CAD
As of November 6, 2026
Save $4,232 CAD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,724 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558366202. Listed at 17 retailers as of November 4, 2026, with prices from $3,493 to $7,724, a $4,232 spread on the same certified stone. MOH London lists it at $7,724. 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

1.21
Carat
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1558366202
Dimensions7.16 × 5.34 × 3.62 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural
Top View
7.16 mm5.34 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1558366202
Side View
Table 67.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 67.7%

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: $7,724 CAD|Low: $3,456 CAD|High: $8,130 CAD|Avg: $4,925 CAD|-5.0%
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
November 6, 2026
Retailer 12$3,493 CAD
Retailer 2$3,646 CAD
Retailer 5$4,175 CAD
Retailer 10$4,223 CAD
Retailer 3$4,273 CAD
Retailer 13$4,480 CAD
Retailer 14$4,632 CAD
Retailer 11$4,792 CAD
Retailer 8$4,856 CAD
Retailer 4$4,951 CAD
Retailer 6$5,134 CAD
Retailer 7$5,391 CAD
Retailer 9$5,653 CAD
MOH London$7,724 CAD

29 data points across 14 retailers

17 retailers$3,493 CAD to $7,724 CAD

A
Cheapest Retailer
-
$3,493 CAD
A
Retailer 2
-
$3,646 CAD
View
B+
Retailer 3
-
$4,175 CAD
View
B+
Retailer 4
-
$4,223 CAD
View
B+
Retailer 5
-
$4,273 CAD
View
Final sale: no returns
B+
Retailer 6
-
$4,445 CAD
View
B+
Retailer 7
-
$4,480 CAD
View
Retailer 8
-
$4,632 CAD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$4,733 CAD
View
B+
Retailer 10
-
$4,792 CAD
View
B+
Retailer 11
-
$4,856 CAD
View
B+
Retailer 12
-
$4,951 CAD
View
B+
Retailer 13
-
$5,134 CAD
View
Retailer 14
-
$5,150 CAD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$5,391 CAD
View
B+
Retailer 16
-
$5,653 CAD
View
Most Expensive
B
MOH London
ED05D376F · Nov 4
$7,724 CAD
£4,324 GBP
View
16 more retailers have this diamond
Prices start from $3,493 CADSave up to $4,232 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
1.21ct Cushion
$3,493 CAD