Over the course of a day, the bolo bracelet's slide can be repositioned as wrist size changes.
Stone Story
When Friedrich Mohs published his hardness scale in 1812, corundum, the mineral that produces both sapphire and ruby, landed at 9. That explained something the sapphire trade already knew empirically: corundum holds its polish under daily wear.
The Perfect Gift
September's birthstone is sapphire, and the designation carries more historical weight than any other in the calendar. Sapphire has held continuous status as a precious gemstone across every major jewelry culture from antiquity to the present, making September's assignment the only one where the stone's prestige has never required reinterpretation or revival.