Black Diamond

A Small Polished Pebble Mix with Real Character

Black Diamond is one of our most versatile small-pebble products. The mix leads with a rich glossy black base, then works in scattered tan, cream, olive, and warm-brown accent stones to keep the look natural rather than uniform. Every stone is water-tumbled to a smooth polished finish. The result is a decorative pebble that reads high-end at close viewing distance, which is exactly what you want in aquariums, water features, and vase-filler applications where the customer sees every stone.

Sized to 5/16″, the pieces are small enough to sit cleanly around plants, driftwood, and hardscape, and large enough to lay flat without blowing away. Colors deepen when wet, so this pebble is especially strong in wet installations like aquariums, indoor fountains, and pondless water features where the glossy black takes on real depth.

Size & Bag Options

• 5/16″ polished pebble mix: the standard small-pebble decorative grade. Coverage varies by application, but a single [BAG WEIGHT] bag handles most container, aquarium, and pot-topper projects.
• Sold in bags, retail-friendly for grab-and-go pickup.

Why Black Diamond Works

• Wet-look depth: the polished finish reads glossy dry and goes deep obsidian-black wet, ideal for aquariums, fountains, and water features.
• Natural color variation: tan, cream, and olive accents keep the mix from looking manufactured or uniform.
• UV-stable color: the black comes from the stone itself, not a coating, so it holds up in sunny outdoor installs.
• Smooth to handle: water-tumbled edges are safe for aquariums, pot arrangements, and any hands-on application.
• Small footprint: the 5/16″ size works in tight detail spaces where larger pebbles are too chunky.

Why ABC Sand & Rock

We’ve supplied decorative aggregates to Valley homeowners, designers, and retail customers for years. Black Diamond is stocked in bags at our 27th Ave Phoenix yard and is pickup only from this location. Stop in any day we’re open, no appointment needed.