Process for making an ornamental article comprising the following operative steps: - a step of arranging a containment jacket, which is extended at least along an extension direction between a first end and a second end (1") and internally defines an operative volume; - a step of inserting, within the operative volume of said containment jacket, at least one model of fusible material, which comprises at least one casting shaft at least partially extended parallel to said extension direction; - a step of embedding said model of fusible material, wherein a mass of at least partially liquid hardening material is introduced in the operative volume of said containment jacket, embedding said model of fusible material; - a hardening step, in which said hardening material solidifies, becoming a rigid mold which is extended along said extension direction between a first end portion and a second end portion (6") and is provided at its interior with a forming chamber occupied by said model; wherein said chamber is provided with a casting channel crossed by the casting shaft of said model, and is provided with a first opening made on the first end portion of said rigid mold and in communication with said casting channel; - a heating step, wherein said rigid mold is heated until it melts said model, forming a flow of molten material that exits from said forming chamber, crossing said casting channel; - a step of casting at least one liquid metal material within the forming chamber of said rigid mold; - a step of cooling the metal material within said forming chamber, in which said metal material solidifies, forming at least one ornamental element; said process being characterized in that it makes, in said rigid mold, a second opening positioned on the second end portion (6") of said rigid mold and placed in fluid communication with the casting channel of said forming chamber, in a manner such that said casting channel is extended in a through manner between said first opening and said second opening; wherein, during said heating step, said flow of molten material exits from said forming chamber, passing through one from between said first opening and said second opening, and waste fumes, produced following the melting of said model, exit from said forming chamber, passing through the other from between said first opening and said second opening. - a step of arranging a containment jacket, which is extended at least along an extension direction between a first end and a second end (1") and internally defines an operative volume; - a step of inserting, within the operative volume of said containment jacket, at least one model of fusible material, which comprises at least one casting shaft at least partially extended parallel to said extension direction; - a step of embedding said model of fusible material, wherein a mass of at least partially liquid hardening material is introduced in the operative volume of said containment jacket, embedding said model of fusible material; - a hardening step, in which said hardening material solidifies, becoming a rigid mold which is extended along said extension direction between a first end portion and a second end portion (6") and is provided at its interior with a forming chamber occupied by said model; wherein said chamber is provided with a casting channel crossed by the casting shaft of said model, and is provided with a first opening made on the first end portion of said rigid mold and in communication with said casting channel; - a heating step, wherein said rigid mold is heated until it melts said model, forming a flow of molten material that exits from said forming chamber, crossing said casting channel; - a step of casting at least one liquid metal material within the forming chamber of said rigid mold; - a step of cooling the metal material within said forming chamber, in which said metal material solidifies, forming at least one ornamental element; said process being characterized in that it makes, in said rigid mold, a second opening positioned on the second end portion (6") of said rigid mold and placed in fluid communication with the casting channel of said forming chamber, in a manner such that said casting channel is extended in a through manner between said first opening and said second opening; wherein, during said heating step, said flow of molten material exits from said forming chamber, passing through one from between said first opening and said second opening, and waste fumes, produced following the melting of said model, exit from said forming chamber, passing through the other from between said first opening and said second opening. said process being characterized in that it makes, in said rigid mold, a second opening positioned on the second end portion (6") of said rigid mold and placed in fluid communication with the casting channel of said forming chamber, in a manner such that said casting channel is extended in a through manner between said first opening and said second opening; wherein, during said heating step, said flow of molten material exits from said forming chamber, passing through one from between said first opening and said second opening, and waste fumes, produced following the melting of said model, exit from said forming chamber, passing through the other from between said first opening and said second opening.