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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6555228607

Certificate GIA 6555228607

Diamond specifications and retailer prices

From $1,463 AUD
As of November 6, 2026
Save $503 AUD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,966 AUD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1ct natural cushion diamond

This 1ct 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 6555228607. Listed at 7 retailers as of November 6, 2026, with prices from $1,463 to $1,966, a $503 spread on the same certified stone. GemTrove lists it at $1,966. 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555228607
Dimensions5.56 × 5.44 × 3.70 mm
L/W Ratio1.02
Top View
5.56 mm5.44 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555228607
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,966 AUD|Low: $1,307 AUD|High: $1,984 AUD|Avg: $1,665 AUD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$1,463 AUD
Retailer 4$1,467 AUD
Retailer 3$1,527 AUD
Retailer 2$1,607 AUD
Retailer 6$1,669 AUD
Retailer 5$1,796 AUD
GemTrove$1,966 AUD

40 data points across 7 retailers

7 retailers$1,463 AUD to $1,966 AUD

A
Cheapest Retailer
-
$1,463 AUD
A
Retailer 2
-
$1,467 AUD
View
Final sale: no returns
A
Retailer 3
-
$1,527 AUD
View
A
Retailer 4
-
$1,607 AUD
View
A
Retailer 5
-
$1,669 AUD
View
A
Retailer 6
-
$1,796 AUD
View
Most Expensive
B+
GemTrove
GT-N-00979294-98 · Nov 6
$1,966 AUD
View
6 more retailers have this diamond
Prices start from $1,463 AUDSave up to $503 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.

A
1.00ct Cushion
$1,463 AUD