Inner diameter: approximately 16 cm Dumortierite: approximately 11mm to early 12mm range Garden Quartz: approximately 19.3mm Please note that there may be slight variations. ⚠ Some images show a deep blue color. Image 1 is the closest to the actual color. No appraisal report included! The supplier called it "Blue Sagenitic," but I was concerned, so I obtained an appraisal report. Appraisal completed for the same lot from the same supplier. Please check images 11, 12, and 13. Colored material is used. There are small holes in the quartz, and the colored material is used to fill and seal them. The colored material is dyed, and if a large amount is used, it will be identified as dyed, but in this case, it is considered natural quartz because the amount used is small (trace). Please check image 14. (Not the beads incorporated in this bracelet) It is almost not present, but rarely seen. Other colors and inclusions are natural. Spherulitic Spherical The pale blue color with granular dumortierite is cute and rare. White Garden Quartz Although there are internal cracks, the transparency of the crystal is high, and the pure white inclusions are beautiful. As these are natural stones, there may be cracks, inclusions, natural dents, black spots, color unevenness, and minor scratches. Natural stone Natural stone bracelet Dumortierite in quartz Spherulitic Dumortierite in quartz Rare stone White Garden Quartz Power stone