Thank you for viewing! ◎ I hope this power stone will encourage you in some small way. ◎ If you are interested in this stone, or if this product has caught your eye, I believe it is fate. Sugilite: Approximately 8mm Iolite: Approximately 6mm Crystal: Approximately 6mm Cut Button Purified. Inner diameter: Approximately 16cm Uses transparent (4-ply) Ope-lon rubber. Sugilite: One of the three major healing stones, it rarely forms crystals, and sometimes forms irregular masses while incorporating various other minerals. Therefore, it has various colors, from almost black to dull colors, gray, olive green, reddish purple, purple, and pink. The power of sugilite resonates with slightly different wavelengths depending on the color, and it is said that the darker and blacker the color, the stronger the ability to protect the wearer from external negative energy (spirits, people's thoughts, environment, etc.). Iolite: Also known as the "stone of vision," it is said to sharpen sensitivity, calm the emotionally charged mind, bring composure, and lead to fundamental solutions. It is also said to bring stability to the heart, remove anxiety, and bring peace. Crystal: It is said to be a power stone that goes well with anything. It is said to be a stone that wards off evil spirits and brings good luck. Crystal symbolizes purity and innocence, purifies the mind and body, activates vitality, and awakens potential and talent. Please understand that this is handmade before purchasing. Also, as natural stones are used, please understand that there may be variations in color, shape, unevenness, cracks, and inclusions.