Carrara Portofino Extra by Stone World

Carrara Portofino Extra is an engineered quartz surface: crushed natural quartz bound with polymer resin and pigments. It is a manufactured material, not a natural stone. Stone World does not say who makes its quartz or what it contains. Its pages describe it as composite stone designed to look as close to natural stone as possible.

Our listing shows Carrara Portofino Extra in a polished finish and 20 mm thickness. Our listing shows the finish we record for this colour; Stone World's website does not state a finish, so we confirm the finish and thickness in your quotation. Your quotation states the finish and thickness we have priced.

For everyday cleaning use a soft cloth with warm water and a little mild washing-up liquid, and wipe up spills promptly. Use a chopping board rather than cutting on the surface, a trivet or heat mat under hot pans, and avoid bleach, abrasive pads and harsh cleaners.

Stone World care guidance · Quartz cleaning guide

Carrara Portofino Extra costs £450–£700 per m², supplied, fabricated and installed. Your quotation is itemised and depends on your worktop and location.

How our prices work · Price calculator

Stone World states a 15 year warranty on its quartz and recommends a non-abrasive cloth or sponge and surface cleaner for care, but does not publish the warranty terms on the pages we checked. Stoneone's 2-year workmanship guarantee is separate, and we confirm the warranty that applies to your order in writing.

Stone World warranty terms · Stoneone warranties