This is a beautiful ring I recently purchased from Wanko Gem. I'm very sorry, but I need to sell it due to an unexpected family expense. Please note that the price is not negotiable. Excerpt: ☆ The center features a collection of Paraiba tourmalines with excellent blue coloration. The colors are consistent, and combined with the fluorescence from the copper inclusions, they appear exceptionally vibrant on the skin when exposed to light. Natural Paraiba Tourmaline 0.30ct stamped Natural Diamond 0.05ct stamped Frame Material: PT900 Maximum frame width: Approximately 7.6mm Minimum frame width: Approximately 3.1mm Size: Approximately 13.5 Total weight: Approximately 9.5g Appraisal Report: Central Gem Laboratory "CuO2.89% MnO3.80%" This is a high-quality ring with a comfortable, substantial feel, made with plenty of precious metal.