Costa Smeralda,
in Los Angeles.
The seafoam quartzite. Named for the Emerald Coast of Sardinia, quarried in Brazil — a soft oceanic green run through with white crystalline veining and the occasional gold mineral trace.

Costa Smeralda — Heavy Leather, 79″ × 123″
On Costa Smeralda
No. 02.3
Quarried in Brazil. Limited supply; lots vary in color saturation and crystalline density.
Costa Smeralda gives a kitchen the look of a green marble — Verde Alpi, Verde Guatemala — without the maintenance. Sealed properly, it tolerates daily kitchen use and resists the etching that affects calcite-based green stones when they meet vinegar, citrus or wine.
Royal Stone stocks Costa Smeralda in 2cm gauge, in heavy leather, honed and polished. Heavy leather deepens the seafoam toward true emerald and forgives fingerprints; honed reads quieter; polished pulls maximum saturation for accent and feature work.
The stone pairs naturally with unlacquered brass, oxidized bronze, rift-sawn oak and limewashed plaster. Specified for kitchen islands, primary baths, fireplace surrounds and bar fronts where a single quiet color carries the room.
Brazil
Origin
2cm
Standard Gauge
3
Finishes Stocked
Costa Smeralda · In the Yard
Costa Smeralda,
currently on the floor.
Costa Smeralda lots in stock now. Tap any slab for the full study.
1 slab
Visit the Yard
Walk a Costa Smeralda slab
in natural light.
Slabs are one-of-one. We’d rather pull the piece for you to see than describe it from a photograph. Designers and private clients are welcome by appointment.