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Cushion|Natural|GIA

1.25ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6462554378

Certificate GIA 6462554378

Diamond specifications and retailer prices

From $4,369 CAD
A$4,812 AUD
As of November 1, 2026
Save $1,814 CAD (29%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,183 CAD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.25ct natural cushion diamond

This 1.25ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 6462554378. Listed at 3 retailers as of November 1, 2026, with prices from $4,369 to $6,183, a $1,814 spread on the same certified stone. 77 Diamonds lists it at $6,183. 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

1.25
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 6462554378
Dimensions6.75 × 5.82 × 4.02 mm
L/W Ratio1.16
Top View
6.75 mm5.82 mm1.25 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6462554378
Side View
Table 65.0%Crown 35°Girdle: 3.3Pavilion 38.5°CuletDepth 69.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $6,183 CAD|Low: $4,859 CAD|High: $6,206 CAD|Avg: $5,507 CAD|+2.1%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2$4,859 CAD
77 Diamonds$6,183 CAD

37 data points across 2 retailers

3 retailers$4,369 CAD to $6,183 CAD

B
Cheapest Retailer
-
$4,369 CAD
A$4,812 AUD
B
Retailer 2
-
$4,859 CAD
View
Most Expensive
B
77 Diamonds
CUSMBWCKASEEB · Nov 1
$6,183 CAD
£3,485 GBP
View
2 more retailers have this diamond
Prices start from $4,369 CADSave up to $1,814 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
1.25ct Cushion
$4,369 CAD