Bead size: 3mm, 3.5mm, 3.5-4mm, 4mm, 5mm, 5.5-6mm, 6mm, 7mm, 8mm, and 9mm Strand length: approximately 15.5" Price is per strand. Guaranteed genuine natural rubies not treated in any way... These rare natural purple rubies were discovered in Madagascar in 2020. We're the first and only company that has made beads out of this rare gemstone! The gorgeous glowing plum purple color in these rubies is 100% natural!... Natural untreated rubies just don't get any better than these! We usually ship every day from Mon-Sat (except postal office holidays) and will do our best to ship on the same day when payment is received. Your satisfaction is our ultimate goal. Please feel free to email us your feedback, suggestions, questions, comments and how much you love your purchase, and everything else. If you fall in love with these beads and need more than listed, please contact us. We usually carry additional inventory for all our listings.