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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5513610130

Certificate GIA 5513610130

Diamond specifications and retailer prices

From $2,372 CAD
$1,698 USD
As of October 30, 2026
Save $2,551 CAD (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,923 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 J 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 5513610130. Listed at 12 retailers as of October 30, 2026, with prices from $2,372 to $4,923, a $2,551 spread on the same certified stone. MOH London lists it at $4,923. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40°
Pavilion angle36.99°
OriginNatural
Grading LabGIA
CertificateGIA 5513610130
Dimensions6.31 × 5.80 × 3.99 mm
L/W Ratio1.09
Top View
6.31 mm5.80 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5513610130
Side View
Table 62.0%Crown 40°Girdle: STK-VTKPavilion 36.99°Culet: NoneDepth 68.8%

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: Oct 30
Current: $4,923 CAD|Low: $2,211 CAD|High: $5,116 CAD|Avg: $3,230 CAD|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5$2,372 CAD
Retailer 9$2,375 CAD
Retailer 6$2,559 CAD
Retailer 2$2,741 CAD
Retailer 3$2,895 CAD
Retailer 8$2,994 CAD
Retailer 7$3,171 CAD
Retailer 10$3,171 CAD
Retailer 11$3,269 CAD
Retailer 4$3,825 CAD
MOH London$4,923 CAD

36 data points across 11 retailers

12 retailers$2,372 CAD to $4,923 CAD

A
Cheapest Retailer
-
$2,372 CAD
$1,698 USD
A
Retailer 2
-
$2,375 CAD
$1,700 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,559 CAD
$1,832 USD
View
B+
Retailer 4
-
$2,561 CAD
A$2,821 AUD
View
B+
Retailer 5
-
$2,741 CAD
£1,545 GBP
View
B+
Retailer 6
-
$2,895 CAD
A$3,188 AUD
View
B+
Retailer 7
-
$2,994 CAD
$2,143 USD
View
B
Retailer 8
-
$3,171 CAD
$2,270 USD
View
B
Retailer 9
-
$3,171 CAD
$2,270 USD
View
B
Retailer 10
-
$3,269 CAD
$2,340 USD
View
B
Retailer 11
-
$3,825 CAD
€2,608 EUR
View
Most Expensive
B
MOH London
E8E9572A0 · Nov 1
$4,923 CAD
£2,775 GBP
View
11 more retailers have this diamond
Prices start from $2,372 CADSave up to $2,551 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
$2,372 CAD