Black Portoro Marble Slabs
The Gold-Veined Majesty of Italian Luxury
Quarried exclusively from the Ligurian coast of Italy, Black Portoro marble is the aristocrat of luxury stones. Its deep black background illuminated by golden veins creates a mesmerizing contrast that has adorned European palaces since the 16th century. Each slab tells a geological story of Mediterranean mineral deposits, making it the ultimate choice for:
Luxury yacht interiors
Five-star hotel lobbies
Haute couture retail spaces
Statement residential features
✔ Rarity Guaranteed – Only 3 quarries produce authentic Portoro worldwide
✔ Vein Intensity Scale – We grade slabs from "Classic" to "Extra Gold" (select XXG for maximum drama)
✔ Century-Proven Durability – 7.2 Mohs hardness with proper sealing
| Attribute | Detail |
|---|---|
| Origin | La Spezia, Italy (PGS-certified quarries) |
| Finishes | Mirror polish • Honed • Antiqued |
| Thickness | 20mm (standard) • 30mm (premium) • 40mm (sculptural) |
| Slab Sizes | 260cm x 160cm (jumbo) • Custom cuts available |
| Applications | Grand staircases • Executive office walls • Premium bar fronts |
Monaco Royal Palace – Throne room flooring
Ritz Paris Renovation – Elevator surrounds
Bulgari Dubai – VIP jewelry cases
▸ For Classic Opulence: Pair with bronze patina metals and Venetian plaster
▸ For Modern Edge: Combine with stainless steel and backlit onyx
▸ Lighting Recommendations: 2700K spotlights to activate golden veins
Digital Vein Mapping – Preview exact slab patterns in your BIM model
Historical Reference Library – Access Portoro usage in landmark projects
"Gold Intensity" Selection – Personal consultation for vein pattern preference
Custom Heritage Finishes – Hand-rusted edges or wax-patina options
Portoro Dossier: Includes geological report + maintenance protocol
"We specified Portoro for a billionaire's superyacht – at sunset, the gold veins mirror the Mediterranean waters. There's simply no substitute."
– Marine Interior Specialist, Monaco
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