Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6555228607

Certificate GIA 6555228607

Diamond specifications and retailer prices

From $1,005 USD
As of November 6, 2026
Save $346 USD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,351 USD 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 $1,005 to $1,351, a $346 spread on the same certified stone. GemTrove lists it at $1,351. 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
Color
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: $1,351 USD|Low: $898 USD|High: $1,363 USD|Avg: $1,145 USD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$1,005 USD
Retailer 4$1,008 USD
Retailer 3$1,049 USD
Retailer 2$1,104 USD
Retailer 6$1,147 USD
Retailer 5$1,234 USD
GemTrove$1,351 USD

41 data points across 7 retailers

7 retailers$1,005 USD to $1,351 USD

A
Cheapest Retailer
-
$1,005 USD
A
Retailer 2
-
$1,008 USD
View
Final sale: no returns
A
Retailer 3
-
$1,049 USD
View
A
Retailer 4
-
$1,104 USD
View
A
Retailer 5
-
$1,147 USD
View
A
Retailer 6
-
$1,234 USD
View
Most Expensive
B+
GemTrove
GT-N-00979294-98 · Nov 6
$1,351 USD
A$2,078 AUD
View
6 more retailers have this diamond
Prices start from $1,005 USDSave up to $346 USD

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
$1,005 USD