Polishing is a crucial process that supports the form and mirror finish of COREJEWELS jewelry. Skilled artisans carefully apply a mirror polish while maintaining the silhouette with pinpoint accuracy.

COREJEWELS' original chaton settings, such as the "Mia Setting" with its flat, broad prongs and the "Adamas Setting" with its diamond-shaped prongs, require a keen sense of balance and are meticulously handcrafted one by one by skilled artisans.

The unique techniques and processes used in COREJEWELS jewelry are collectively referred to as Special Processing. For our bead diamonds, to enhance durability, we drill millimeter-sized holes into Mohs hardness 10 diamond beads and thread them with a special alloy chain. Additionally, our "CJ BLACK" coating is a material made from ruthenium, a platinum-group metal, blended into a unique color, and applied as a film coating to the base material using micron-level technology.