Black Onyx Sphere 150mm — Large Grounding Crystal house warming gift hand-polished into a smooth 40mm

hand-polished into a smooth 40mm ball that sits comfortably in the palm

a colour that's genuinely stable and won't fade with normal handling or light exposure

whether that's in a hard conversation or simply everyday self-expression

A dry soft brush is the right way to keep it clean

continuous sweep

Black Onyx Sphere 150mm — Large Grounding Crystal house warming gift hand-polished into a smooth 40mmThis Black Onyx sphere is an extra large polished crystal with a deep black colour and a smooth, powerful presence. At 150mm and roughly 4. 5kg, this piece is genuinely rare in size and makes a strong statement in any crystal collection or home display. So what is black onyx known as? It is a stone of protection, grounding, strength, and emotional stability, often chosen by people who want to create a calmer space, reduce heavy energy, and feel more