Sapphire's September birthstone status rests on prestige that came first. Persian, Greek, Roman, and medieval European jewelry cultures valued sapphire long before modern birthstone lists formalized the assignment.
Made With Purpose
A springring clasp works reliably on lightweight to medium-weight chains because its circular shape spreads tension evenly across the clasp body rather than concentrating stress at a single point.
Stone Story
A sapphire's color is evaluated across three variables: hue, tone, and saturation. The most valuable stones show strong, even saturation without cloudiness or color concentration in one area.