10 Rhinestone Buttons Round 3/4" (20mm) Diamante Crystal Hair Flower Comb Wedding Invitation Bouquet Jewelry Pillow BT074 Free shipping for any additional items. US seller. Ship within one business day. Measurements (approx): 3/4" (20mm) in diameter Materials: silver metal with A+ grade rhinestones Shape: round Buy with confidence. We are the biggest rhinestone product seller on Amazon providing over 2000 rhinestone products.