Average Size ~ 1.2 inches, or 45 mm
I bought two, one for my boyfriend as a relaxation technique as he quit smoking and one for me. I was saddened to find that one arrived cracked and broken, but customer service was top notch! I was sent a replacement immediately and it was specially wrapped to ensure its safe arrival.
Beautiful rose quartz, smooth and comfortable in our palms. Great for moments of anxiety, and as a smoking cessation tool as well!