Abstract: The invention relates to a bijouterie and/or jewelry assembly comprising two items removably attached to one another by an attachment device. This assembly is remarkable in that the attachment device comprises: a first attachment element (13) having a longitudinal axis (21), comprising a locking bolt (23), a second attachment element (15), comprising a locking strike (55), said first and second attachment elements being formed to prevent the relative translation thereof along said longitudinal axis and to allow the relative translation thereof along a transverse axis (29), said bolt being movable between a locked position blocking the relative translation of said first and second attachment elements along said transverse axis, and an unlocked position allowing the relative translation of said first and second attachment elements along said transverse axis.

Abstract: A bijouterie and/or jewelry item, comprises a hollow male part and a hollow female part interacting with each other, in which the male part comprises: a first ornamental part, having a first inner surface and a first outer ornamental surface, a male coupling part, integral with said inner surface and having an outer coupling surface, the female part comprises: a second ornamental part, comprising a second inner surface and a second outer ornamental surface, a female coupling part, integral with said second inner surface and comprising an inner coupling surface shaped to interact with said outer coupling surface.