Ettika Silver Onyx Circle Stone Pendant Necklace

Nordstrom

Silver-tone chain matches delicate link style, Small, round, dark pendant, Simple bezel setting for the pendant, Overall size and proportion are consistent, Material (silver and onyx) aligns with visual cues

Sterling Silver Enamel Circle Necklace

Etsy - MagpieMouseStudios

Silver-tone chain matches, Dark, circular/irregular open pendant shape matches, Overall minimalist design matches, Material (sterling silver) is consistent with visual appearance

Dainty Onyx Pendant Black Onyx Necklace

Aura & Faith

Silver-tone chain, Round dark pendant, Similar size and simplicity, Black onyx material is consistent