The necklace has a neck circumference of approximately 21cm and uses coral. I purchased it from a used clothing store. The clasp is made of silver. I bought it because the design was similar to the necklace of qsssy from the third photo! Showa retro, retro style Retro pop, vintage style Unisex, genderless Vintage, antique, old items Sustainable, upcycle, SDGs Classical, retro used clothing, old classical