Thank you for viewing. ☆ The purple stone enhances "nobility," "healing," and "intuition," while the moon motif is said to enhance a woman's charm and maternal instincts. These two elements have in common the effect of calming the wearer's heart, and are widely favored as good luck charms. Size: No. 16.5 (ring size) Stone size (including silver frame) approximately 9mm in diameter. Height from end to end of the crescent moon: approximately 17.5mm