1. Material : 925 Sterling Silver with 18 Karat gold-plated. 2. Gemstones : Genuine/real iolite gemstones 3. Available in size 5, 6, 7, 8 (USA standard). 4. Simple and versatile. The perfect stacking ring. 5. Shiny polished. 6. Our gold plating standard is very thick, five times the industry standard and coated with a special protective layer to enhance its durability. 7. Available in both gold vermeil (18 karat gold-plated over 925 sterling silver) and 925 sterling silver. 8. It comes in a beautiful box with a blank card and care instruction included.