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Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6411171191

Certificate GIA 6411171191

Diamond specifications and retailer prices

From $2,553 CAD
As of November 6, 2026
Save $3,417 CAD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,970 CAD at MOH London · As of November 7, 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 F 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 6411171191. Listed at 14 retailers as of November 6, 2026, with prices from $2,553 to $5,970, a $3,417 spread on the same certified stone. MOH London lists it at $5,970. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6411171191
Dimensions6.18 × 5.94 × 4.10 mm
L/W Ratio1.04
Top View
6.18 mm5.94 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6411171191
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.9%

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: $5,970 CAD|Low: $2,553 CAD|High: $6,067 CAD|Avg: $3,938 CAD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$2,553 CAD
Retailer 9$2,556 CAD
Retailer 4$3,322 CAD
Retailer 2$3,625 CAD
Retailer 8$3,889 CAD
Retailer 10$3,934 CAD
Retailer 6$4,180 CAD
Retailer 5$4,255 CAD
Retailer 7$4,991 CAD
MOH London$5,970 CAD

25 data points across 10 retailers

14 retailers$2,553 CAD to $5,970 CAD

A
Cheapest Retailer
-
$2,553 CAD
A
Retailer 2
-
$2,556 CAD
View
A
Retailer 3
-
$3,322 CAD
View
A
Retailer 4
-
$3,471 CAD
View
Retailer 5
-
$3,542 CAD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$3,622 CAD
View
A
Retailer 7
-
$3,625 CAD
View
B+
Retailer 8
-
$3,823 CAD
View
B+
Retailer 9
-
$3,889 CAD
View
B+
Retailer 10
-
$4,180 CAD
View
Retailer 11
-
$4,217 CAD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
$4,255 CAD
View
B+
Retailer 13
-
$4,991 CAD
View
Most Expensive
B
MOH London
63BA0D0F2 · Nov 7
$5,970 CAD
£3,342 GBP
View
13 more retailers have this diamond
Prices start from $2,553 CADSave up to $3,417 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
$2,553 CAD