A cameo is a profile
A cameo is a profile. A face or figure raised from a darker ground — shell, hardstone, a small relief the gold has been asked to hold. You do not meet a claw. You do not meet a wall. You do not meet a dome, a foil glow, a pavé weather, a row of beads, or a mystery-set tile. You feel a likeness that sits forward. The literacy is the relief.
A cameo is carved so the light figure stands above the dark. An intaglio goes the other way, a hollow the light falls into. The cameo is the one you can almost take between finger and thumb as a little person.

A Langobardic disk is the lesson in one object. A Roman onyx at the heart — a rider in pale relief on a dark ground — then later gold, filigree rings, a circle of small stones. You would meet the raised figure before you met the mount. The cameo is older than the gold that learned to keep it. A prong would have been a finger on a facet. A bezel is only the rim. This jewel is the profile: a body that stands up from its night.
The literacy is the step of the carving. If the face is a hollow, you are in an intaglio. A cameo begins when the likeness has already come forward.

A shell that is a face, then a line of heads
A New York shell makes the same sit as a face you can name by touch. White head, warm brown ground, black enamel as a thin motto, a gold vine as the hold. You would feel the raised brow before you felt the pin. Helmet-conch is the material of that appetite: a pale layer left standing, a darker layer kept as weather behind it. Not a cabochon dome. Not a foil lighting a thin red. A profile the shell has been asked to keep.
A Castellani bracelet multiplies the profile into a line. Six hardstone ovals, each a head in relief, gold granulation as a quiet room around every face, pearls as the small pauses between. You would meet a row of likenesses, then the gold. Pavé would have hidden the metal under sparks. Milgrain would have beaded an edge. A mystery set would have tiled a color without a claw. The cameo keeps the person — a raised profile, worn as the jewel, a face the stone still holds.

That is the note. A prong is a claw. A bezel is a wall. A cabochon is a dome. A foil is a mirror. Pavé is a field. Milgrain is a row of beads. A mystery set is a tiled color. A cameo is the profile — a face or figure in relief, a likeness that sits forward from its ground.
Educational only · Not jewelry, insurance, or legal advice