Dainty minimalist 925 sterling silver solitaire sunstone promise ring for herCeltic style dainty solitaire promise ring with round cut sunstone. This is a beautiful, stunning, feminine ring that works well for all occasions, styles, and ages! Stone: Sunstone Approximate size: 2. 5 mm Metal type: Silver Metal stamp: 925 Sterling SIlver Make a promise that shines with our simple solitaire sunstone promise ring. The minimalist design captures the essence of commitment with a singular sunstone, radiating warmth and elegance.