In jewellery construction, the head — also called the setting head — is the uppermost structural component of a ring or other mounted jewel, designed specifically to hold and display the gemstone. It sits above the shank (the band that encircles the finger) and constitutes the functional heart of the mounting: its geometry, height, and metalwork determine how securely the stone is held, how much light reaches it, and how the finished piece reads visually. The term is used interchangeably with "setting" in everyday trade parlance, though strictly speaking "head" refers to the stone-holding structure in isolation, before or after it is united with the shank.

Construction and Assembly

Heads are commonly manufactured as discrete, pre-formed components — cast or fabricated in gold, platinum, or silver — and subsequently soldered onto shanks. This modular approach allows bench jewellers and production workshops to assemble rings efficiently, pairing a standardised head with a shank of the appropriate width, profile, and metal. Pre-manufactured heads are sized by stone shape and millimetre dimension (for example, a round head calibrated for a 6.5 mm stone, corresponding to approximately one carat in diamond). Custom or bespoke heads are fabricated from sheet and wire or produced by lost-wax casting to the designer's specification.

The join between head and shank is a structurally critical point; in quality work it is reinforced with solder that fully penetrates the seam, and the junction is often concealed or aesthetically integrated through design elements such as gallery rails, side stones, or decorative shoulders.

Common Head Styles

• Prong heads — The most prevalent type, consisting of a base (the basket or gallery) from which a number of metal prongs rise to grip the stone at or just above the girdle. Four-prong heads expose more of the stone and are associated with a lighter, more open appearance; six-prong heads, epitomised by the classic Tiffany-style solitaire, distribute holding force more evenly and are considered more secure for larger stones.
• Bezel heads — A continuous collar of metal encircles the entire girdle of the stone, offering maximum protection. Bezel heads are particularly suited to cabochon-cut stones, lower-hardness gems, and active wearers.
• Cathedral heads — A prong-style head in which arched metal elements rise from the shank on either side of the stone, elevating it and providing additional lateral support. The arches echo the soaring lines of Gothic vaulting, from which the style takes its name.
• Halo heads — A central stone-holding element (typically a prong or bezel setting) is surrounded by a frame of smaller accent stones, usually pavé- or bead-set. The halo optically enlarges the apparent diameter of the centre stone and adds brilliance to the overall composition.
• Tension-style heads — The stone is held by compressive force between two opposing metal walls rather than prongs or a bezel. Requires precise engineering and is most reliably executed in platinum or high-hardness gold alloys.

Relationship to the Mounting

The head is a sub-component of the broader mounting — the complete metal framework of the jewel exclusive of the gemstone itself. Understanding the distinction matters in trade and repair contexts: a jeweller may replace a worn or damaged head without replacing the entire mounting, and a client may commission a new shank while retaining an heirloom head. When a gemstone is described as being "in its original head," this signals that the stone-holding element has not been altered or replaced, which can be relevant to the provenance and integrity of antique or period jewels.