Bisel

Example:The diamond had multiple facets and one bisel.

Definition:A flat surface on a polished gem or other solid object, especially a diamond.

Example:The bisel was an important part of the coin’s edge.

Definition:A linear border or limit of a surface or material.

Example:The gemstone was held in place by platinum prongs and a bisel.

Definition:A narrow strip of metal bent to form a point or hook, used in setting stones or as part of a jewelry design.