Pinnacle Sales is proud to bring US Stone Group to dealers, designers, and fabricators across the Western U.S. Based in Westminster, California, US Stone Group is a luxury stone and surface supplier that hand-selects premium natural stone, porcelain, and semi-precious gemstone slabs from the world's finest quarries. With this partnership, Pinnacle now represents the surface as well as the cabinetry — a single source for the whole kitchen and bath.

Cristallo quartzite slab — crystalline, translucent, backlight-ready

Why US Stone Group

Signature Collections

From bold statement quartzites to luminous semi-precious gemstone slabs, US Stone Group's collections are curated for unmatched style and premium quality across three categories.

Natural Stone

Quartzite, marble, granite, and travertine — including the signature Cristallo (Bianco, Rosa, Gold, Royale, Slate, Smoke, Mist, Sol & Lumix) and Patagonia (Select, Ivory & Eclipse) lines, plus timeless quartzites like Taj Mahal, Mont Blanc, Perla Venata, and Emerald. Available in 2 cm and 3 cm.

Patagonia quartzite book-matched slab
Patagonia Quartzite
Emerald quartzite book-matched slab
Emerald Quartzite
Luxury marble slab
Marble

Semi-Precious

Agate, amethyst, crystal quartz, sodalite, and decorative mineral slabs — striking, one-of-a-kind feature surfaces. Many are translucent and backlight-ready for dramatic islands, bar tops, and feature walls.

Backlit agate slab feature application
Backlit Agate
Blue agate semi-precious slab
Blue Agate
Crystal quartz semi-precious slab
Crystal Quartz

Porcelain

Large-format Italian porcelain in marble, stone, and travertine looks — durable, low-maintenance surfaces for floors, walls, and counters, including book-matched and full-slab applications.

Applications

US Stone Group surfaces are specified for kitchen countertops, bathroom vanities, feature walls, fireplace surrounds, flooring, hospitality and commercial interiors, and custom furniture surfaces.

Luxury stone countertop kitchen application
Kitchen Countertops
Luxury stone feature wall application
Feature Walls

See the Slabs in Person

Selecting natural stone is a visual, slab-by-slab decision — no two pieces are alike. Tell us about your project and Pinnacle Sales will connect you with current inventory, additional photos, and a slab walk-through, then route you to a local dealer or fabricator to complete your selection.

Request a Slab Walk-Through

Add Luxury Surfaces to Your Showroom

Now distributed by Pinnacle Sales across the Western U.S., US Stone Group lets your dealership offer the countertop alongside the cabinetry — backed by the same hands-on rep support. Contact us to carry US Stone Group.

Become a Dealer