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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 €900 EUR
As of November 6, 2026
Save €310 EUR (26%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €1,210 EUR 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 €900 to €1,210, a €310 spread on the same certified stone. GemTrove lists it at €1,210. 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: €1,210 EUR|Low: €804 EUR|High: €1,221 EUR|Avg: €1,025 EUR
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7€900 EUR
Retailer 4€903 EUR
Retailer 3€940 EUR
Retailer 2€989 EUR
Retailer 6€1,027 EUR
Retailer 5€1,105 EUR
GemTrove€1,210 EUR

40 data points across 7 retailers

7 retailers€900 EUR to €1,210 EUR

A
Cheapest Retailer
-
€900 EUR
A
Retailer 2
-
€903 EUR
View
Final sale: no returns
A
Retailer 3
-
€940 EUR
View
A
Retailer 4
-
€989 EUR
View
A
Retailer 5
-
€1,027 EUR
View
A
Retailer 6
-
€1,105 EUR
View
Most Expensive
B+
GemTrove
GT-N-00979294-98 · Nov 6
€1,210 EUR
A$2,078 AUD
View
6 more retailers have this diamond
Prices start from €900 EURSave up to €310 EUR

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
€900 EUR