A push button clasp is doing more under the surface. That extra internal engineering, especially compared with a springring or lobster clasp, is why it tends to read as higher-end bracelet and chain construction.
Style Notes
The appeal of 14kt white gold for colored gemstone settings is optical: its neutral finish introduces no warm color interference, allowing the stone to display its true hue without the color modification that a yellow gold setting produces. This makes it the preferred choice for designs where gemstone color accuracy is a priority.
Made With Purpose
The figure-8 safety is permanently attached to the primary clasp by solder or mechanical connection on one side, a captive secondary lock whose attachment to the clasp body means it's always present on the piece rather than optional or removable.