Bezel setting
A bezel setting secures a gemstone by bending or burnishing a thin metal rim over its edge. A full bezel surrounds the entire stone; a partial bezel leaves sections of the perimeter exposed.
The rim protects the stone's edge and provides a smooth transition that is less likely to catch on clothing or gloves. Bezels can hold faceted stones as well as other stone shapes. The term describes the securing method, not gemstone identity, metal fineness or the age of the jewel.
Examine the evenness of the rim, movement of the stone, cracks, dents and evidence of resetting. A decorative frame is not necessarily the structure securing the stone. Record the construction before describing an older ring or brooch as bezel set.