This necklace features a 14x23mm pendant with a flat rectangular slice of lapis set into a yellow gold plated silver bezel with bead on bottom. The pendant hangs from yellow gold (18k 3micron) plated silver 0.8mm Italian round box chain. It made with  finish.

This 2-tone ring features a 10x14mm flat rectangular slice of lapis set into a yellow gold (14k 1mc) and palladium plated bezel set onto a 2mm wide silver shank.  It is made with antitarnish finish. It cannot be resized,

Round peridot on sterling silver ring

Many marcasite sparkle around round black onyx on sterling silver ring

Black enamel and marcasite on sterling silver ring

Many tiny marcasite sparkle around large oval amethyst on sterling silver ring

2 x baguette black onyx and marcasite on sterling silver ring