Pink and Purple Genuine Pearl Necklace w Silver Artisan accents

This necklace consists of genuine pink and purple pearls hand strung and knotted. The closure is made up of handmade sterling silver (I believe) bead charms and a toggle clasp. I searched everywhere for a mark to determine if the metal is sterling and couldn’t find one but I’m fairly certain it is sterling since I was able to polish it because it was tarnished. This is a handmade artisan piece, has a heavy weight to it, and all the metal work is hand made.