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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1455976885

Certificate GIA 1455976885

Diamond specifications and retailer prices

From $3,369 CAD
As of November 6, 2026
Save $3,511 CAD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,879 CAD at MOH London · As of November 1, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1455976885. Listed at 10 retailers as of November 1, 2026, with prices from $3,369 to $6,879, a $3,511 spread on the same certified stone. MOH London lists it at $6,879. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1455976885
Dimensions6.43 × 5.85 × 4.02 mm
L/W Ratio1.10
Key to symbols
Crystal, Cloud, Needle
Top View
6.43 mm5.85 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1455976885
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,879 CAD|Low: $2,995 CAD|High: $6,963 CAD|Avg: $4,440 CAD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$3,291 CAD
Retailer 5$3,441 CAD
Retailer 6$4,081 CAD
Retailer 3$4,397 CAD
Retailer 2$4,553 CAD
MOH London$6,879 CAD

43 data points across 6 retailers

10 retailers$3,369 CAD to $6,879 CAD

Retailer 1
-
$3,291 CAD
Price last confirmed 10 days ago
B+
Retailer 2
-
$3,369 CAD
View
B+
Retailer 3
-
$3,441 CAD
View
Final sale: no returns
B+
Retailer 4
-
$4,081 CAD
View
B
Retailer 5
-
$4,304 CAD
View
B
Retailer 6
-
$4,304 CAD
View
B+
Retailer 7
-
$4,397 CAD
View
B
Retailer 8
-
$4,445 CAD
View
B+
Retailer 9
-
$4,553 CAD
View
Most Expensive
B
MOH London
D2D4E4548 · Nov 1
$6,879 CAD
£3,851 GBP
View
9 more retailers have this diamond
Prices start from $3,369 CADSave up to $3,511 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.

B+
1.21ct Cushion
$3,369 CAD