Donatello Gian Sterling Silver Curb Link Necklace

Nordstrom

Silver color matches exactly, Curb link style is highly consistent with the visible links in the frame, Overall form factor and apparent delicacy match, Price tier is appropriate for a generic silver chain, No brand conflict as no brand is visible in the frame

Pandora Elongated Link Chain Necklace

Macy's

Silver color, Necklace category, General simple link chain design, Uniform, elongated oval link shape appears to match well

Pandora Chain Necklace

Pandora Jewelry

Silver color matches, Category (necklace) matches, General delicacy of the chain