Method for manufacturing a hole jewel

A Method for manufacturing a hole jewel, comprising the following steps:

• forming a precursor from a mixture of at least one powder material with a binder;
• pressing the precursor, with an upper die and a lower die provided with a single punch, to form a green body of the future hole jewel having a single blind cavity with a height comprised between a height of the green body and a height of the future hole jewel, the cavity being provided with upper and lower portions respectively including blanks of a through hole and of a functional element of the future hole jewel;
• sintering said green body to form a body of the future hole jewel from said at least one material, and
• machining the body of the future hole jewel including a first sub-step of shaping a top of said body configured to form an upper surface of said hole jewel in readiness for an opening to be made in the through hole blank to allow the functional element to be connected to said upper surface, and a second sub-step of shaping a base of the body during which a height of the lower portion that includes the functional element blank is configured.