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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 $1,288 SGD
As of November 6, 2026
Save $443 SGD (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,731 SGD 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 $1,288 to $1,731, a $443 spread on the same certified stone. GemTrove lists it at $1,731. 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: $1,731 SGD|Low: $1,151 SGD|High: $1,747 SGD|Avg: $1,466 SGD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$1,288 SGD
Retailer 4$1,292 SGD
Retailer 3$1,344 SGD
Retailer 2$1,415 SGD
Retailer 6$1,470 SGD
Retailer 5$1,581 SGD
GemTrove$1,731 SGD

40 data points across 7 retailers

7 retailers$1,288 SGD to $1,731 SGD

A
Cheapest Retailer
-
$1,288 SGD
A
Retailer 2
-
$1,292 SGD
View
Final sale: no returns
A
Retailer 3
-
$1,344 SGD
View
A
Retailer 4
-
$1,415 SGD
View
A
Retailer 5
-
$1,470 SGD
View
A
Retailer 6
-
$1,581 SGD
View
Most Expensive
B+
GemTrove
GT-N-00979294-98 · Nov 6
$1,731 SGD
A$2,078 AUD
View
6 more retailers have this diamond
Prices start from $1,288 SGDSave up to $443 SGD

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
$1,288 SGD