Recognize the real of the fake : tutorial with Orobel

Orobel offers a comprehensive guide an tutorial into several pages specifically designed for you to recognize the gold jewelry, the karat and if it is pressed or not.




Definition of alloys

Karat system.

Numeric system.

Exotic titration.

Alloys colors and shades.


Stamps and hallmarks.

Hallmarks and legal titrations.

Manufacturer marks.


Recognize the real and the fake : methods.

Density principle.

Finishing touch and manufacturing style of jewelry.

Touchstone test.


Be careful with swindling !

Ring marked 18 kt.

Steel jewelry with gold color.

Gold from Africa.

Cet article dans sa version complète est disponible en version PDF.

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