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Cushion|Natural|GIA

1.21ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 5136915906

Certificate GIA 5136915906

Diamond specifications and retailer prices

From $6,228 CAD
As of November 4, 2026
Save $5,117 CAD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,345 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 G 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 5136915906. Listed at 9 retailers as of November 4, 2026, with prices from $6,228 to $11,345, a $5,117 spread on the same certified stone. MOH London lists it at $11,345. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5136915906
Dimensions5.85 × 5.75 × 3.76 mm
L/W Ratio1.02
Top View
5.85 mm5.75 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 5136915906
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 65.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $11,345 CAD|Low: $6,196 CAD|High: $11,513 CAD|Avg: $7,749 CAD|+2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$6,228 CAD
Retailer 5$6,280 CAD
Retailer 7$6,425 CAD
Retailer 8$7,143 CAD
Retailer 6$7,200 CAD
Retailer 3$7,614 CAD
Retailer 2$8,037 CAD
Retailer 4$8,714 CAD
MOH London$11,345 CAD

42 data points across 9 retailers

9 retailers$6,228 CAD to $11,345 CAD

B
Cheapest Retailer
-
$6,228 CAD
B
Retailer 2
-
$6,280 CAD
View
B
Retailer 3
-
$6,425 CAD
View
Retailer 4
-
$7,143 CAD
View
Price last confirmed 9 days ago
Retailer 5
-
$7,200 CAD
View
Price last confirmed 29 days ago
B
Retailer 6
-
$7,614 CAD
View
B
Retailer 7
-
$8,037 CAD
View
B
Retailer 8
-
$8,714 CAD
View
Most Expensive
B
MOH London
FC016585B · Nov 4
$11,345 CAD
£6,351 GBP
View
8 more retailers have this diamond
Prices start from $6,228 CADSave up to $5,117 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
$6,228 CAD