
Rounded octagons, cross-shaped connectors, and tiny nested diamonds inside each center: the octagon diamond tile coloring page packs three distinct shape layers into every single repeat.
Each tile unit in this pattern pairs a rounded octagon with a bold cross arm extending outward to meet its neighbors, then tucks a small nested diamond right at the core. The result is a wall-to-wall grid that reads as both interlocking crosses and repeating octagons depending on where your eye lands, and that dual reading makes color planning genuinely interesting.
The nested diamond centers are the smallest zones and reward a contrasting accent color, while the cross arms and octagon bodies offer larger fields for building gradients or alternating tones. This octagon diamond tile coloring page sits in the medium-to-high complexity range: not so tight that it becomes frustrating, but dense enough to feel like a proper project. It belongs to the Geometric Designs collection and shares that series’ satisfying, almost meditative rhythm.


Watercolor pencils applied dry give the large octagon bodies a soft, layered look that alcohol markers can’t easily achieve here without bleeding across the thin cross arms. Colored pencils are the reliable workhorse for those arms and the corner triangles, letting you build tone slowly without overshooting the lines. Save a fine liner for tracing the nested diamond edges if you want them to pop as sharp accent shapes rather than blend into the surrounding field.

Eighty-pound copy paper handles this pattern well since the lines are bold enough to show clearly without cardstock weight, but dropping to standard twenty-pound paper risks bleed-through if you use wet media. Keep the scale at one hundred percent so the nested diamond centers stay large enough to color comfortably.