Method for making a layered structure comprising a first support layer, a second support layer, and an adhesive intermediate layer interposed between said first layer and said second layer which is adapted to fix said first and second layer to each other, said intermediate layer operatively embedding at least a three-dimensional macroscopic element made of crystal glass or precious stones, and said intermediate layer being made of a thermoplastic resin having a melting temperature (Tm), said method comprising the steps of: a1) applying said at least a three-dimensional macroscopic element on a surface of said first layer, a2) laying said intermediate layer on said first layer and said at least a three-dimensional macroscopic element, a3) applying said second layer on said intermediate layer thus arranging said layered structure, b1) applying to said layered structure a vacuum comprised between -0.700 and -0.999 bar at a first temperature comprised between 10 °C and Tm-30 °C, b2) increasing the temperature with an heating rate of between 1 and 10 °C/min reaching a second temperature of between Tm-30 °C and Tm in order to soften said intermediate layer, while also maintaining the vacuum of step b1), b3) maintaining the temperature at the value of the second temperature for at least 20 minutes, to stabilize said intermediate layer while also maintaining the vacuum of step b1), b4) increasing the temperature with an heating rate of between 1 and 10 °C/min reaching a third temperature of between Tm and Tm+60 °C in order to melt said intermediate layer, while also maintaining the vacuum of step b1), b5) maintaining the temperature at the value of the third temperature for at least 80 minutes, to stabilize said intermediate layer while also maintaining the vacuum of step b1). said intermediate layer operatively embedding at least a three-dimensional macroscopic element made of crystal glass or precious stones, and said intermediate layer being made of a thermoplastic resin having a melting temperature (Tm), said method comprising the steps of: a1) applying said at least a three-dimensional macroscopic element on a surface of said first layer, a2) laying said intermediate layer on said first layer and said at least a three-dimensional macroscopic element, a3) applying said second layer on said intermediate layer thus arranging said layered structure, b1) applying to said layered structure a vacuum comprised between -0.700 and -0.999 bar at a first temperature comprised between 10 °C and Tm-30 °C, b2) increasing the temperature with an heating rate of between 1 and 10 °C/min reaching a second temperature of between Tm-30 °C and Tm in order to soften said intermediate layer, while also maintaining the vacuum of step b1), b3) maintaining the temperature at the value of the second temperature for at least 20 minutes, to stabilize said intermediate layer while also maintaining the vacuum of step b1), b4) increasing the temperature with an heating rate of between 1 and 10 °C/min reaching a third temperature of between Tm and Tm+60 °C in order to melt said intermediate layer, while also maintaining the vacuum of step b1), b5) maintaining the temperature at the value of the third temperature for at least 80 minutes, to stabilize said intermediate layer while also maintaining the vacuum of step b1). a1) applying said at least a three-dimensional macroscopic element on a surface of said first layer, a2) laying said intermediate layer on said first layer and said at least a three-dimensional macroscopic element, a3) applying said second layer on said intermediate layer thus arranging said layered structure, b1) applying to said layered structure a vacuum comprised between -0.700 and -0.999 bar at a first temperature comprised between 10 °C and Tm-30 °C, b2) increasing the temperature with an heating rate of between 1 and 10 °C/min reaching a second temperature of between Tm-30 °C and Tm in order to soften said intermediate layer, while also maintaining the vacuum of step b1), b3) maintaining the temperature at the value of the second temperature for at least 20 minutes, to stabilize said intermediate layer while also maintaining the vacuum of step b1), b4) increasing the temperature with an heating rate of between 1 and 10 °C/min reaching a third temperature of between Tm and Tm+60 °C in order to melt said intermediate layer, while also maintaining the vacuum of step b1), b5) maintaining the temperature at the value of the third temperature for at least 80 minutes, to stabilize said intermediate layer while also maintaining the vacuum of step b1).