This is a pendant necklace with a beautiful emerald green stone set in a sterling silver (925) top. I received it from my parents, so I don't know the stone's specific details. The silver hallmark is only on the top, but as you can see in the photos, it has a gorgeous, eye-catching appearance. What do you think? - Color: Emerald Green - Material: Top - Sterling Silver (925 hallmark present) Chain - No hallmark - Design: Pendant - Chain Length: Medium - Embellishment: With stone Thank you for looking.