A push button clasp serves chain bracelets, tennis bracelets, and heavier link necklaces because it balances security with single-hand operation.
A Storied Heritage
The figure-8 safety emerged from a practical gap: heavier chain and gem-set bracelets placed stress on single-point hook closures that the mechanism wasn't designed to handle reliably, and a secondary lock at the same closure point was the direct solution.
Stone Story
Sapphire is second only to diamond in terms of hardness, which is exactly what makes it one of the most confident choices for rings and bracelets intended for daily use.