Bead Diameter: Approximately 9.5-10mm Inner Diameter: Approximately 16cm This is a very beautiful blue rose quartz with a clear blue and transparency. I purchased this as a hobby in April 2025, but I am selling it because I urgently need funds. After I purchased it, I carefully stored each one in a zip-lock bag. I only took them out for photos/inspection, so apart from initial scratches, it is unused and clean. Thank you. #NaturalStone #PowerStone