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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 $4,463 AUD
As of November 1, 2026
Save $1,853 AUD (29%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,316 AUD 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 $4,463 to $6,316, a $1,853 spread on the same certified stone. 77 Diamonds lists it at $6,316. 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
Colour
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: $6,316 AUD|Low: $4,964 AUD|High: $6,339 AUD|Avg: $5,627 AUD|+2.1%
77 Diamonds
Retailer 2
November 1, 2026
Retailer 2$4,964 AUD
77 Diamonds$6,316 AUD

36 data points across 2 retailers

3 retailers$4,463 AUD to $6,316 AUD

B
Cheapest Retailer
-
$4,463 AUD
B
Retailer 2
-
$4,964 AUD
CA$4,831 CAD
View
Most Expensive
B
77 Diamonds
CUSMBWCKASEEB · Nov 1
$6,316 AUD
£3,485 GBP
View
2 more retailers have this diamond
Prices start from $4,463 AUDSave up to $1,853 AUD

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
$4,463 AUD