Thank you for viewing. The item is silver 925 with gold plating, so those with allergies can use it with peace of mind. The design is based on a design from ancient China, believed to bring good fortune. The round agate uses high-quality Southern Red Agate. ● Southern Red Agate (Nan Hong Agate) is a stone with a long history, used in China since before the Christian era. The overall feel is very good, with a careful finish down to the smallest details. ★ Size: Agate: 8.9mm wide, 9.7mm long Top: 11.2mm wide, 20.7mm long Total length: 33.2mm Material: Silver 925 (stamped) (Gold finish) Comes with a certificate from an overseas appraisal institution. ■ Notes: As it is a natural stone, there may be some scratches and inclusions. Even stones of the same type will vary in shape, color, and pattern, and no two stones are exactly alike. Please understand this beforehand. Please refrain from purchasing if you are overly concerned about minor imperfections. Colors may differ slightly depending on the way the photos are taken. Please understand. ★ Immediate purchase is OK. Thank you.