Claw setting is one in which a series of metal prongs, called claws, holds a gemstone securely in a setting. This setting lets light in under the gemstone, so is usually used for transparent, faceted stones.
Pavé settings are made up of lots of small gemstones, often diamonds, set closely together. The gems are separated and held in place by little beads of the setting metal. The result is what looks like a continuous surface of diamonds or other gems.
Channel setting - gemstones are placed into a metal channel. The gemstones flow in a continuous row, because no metal is used to separate them.
In a rub-over, or "bezel" setting, the diamond is wrapped within a collar of precious metal. A rub-over setting may also appear as a partial setting, with a part of the diamond being wrapped in the "collar" and the remainder exposed.
Bar channel setting
Diamonds and gemstones are set in separate settings between metal bars running perpendicular to the ring. The diamond or gemstone are locked in place by the metal bars.
A star setting is one in which a gem is set within an engraved star. The gem is secured by a small grain of metal.
A diamond is held in place by the pressure of the band's metal, which is designed to "squeeze" the stone.
N. B. Prices depend on gemstone size, shape and softness; also how "tricky" the item is.