Natural metals come from the earth. Due to the naturality, the beads may have tiny flaws.
Cutting or polishing also makes every bead unique, varying in color and size.
Natural metals will tarnish and can be polished.
Natural gemstones come from minerals. Due to the naturality, the stones may have tiny flaws.
Cutting or polishing also makes every piece of gemstone unique, varying in color and size.
The product you receive may look slightly different for these reasons.