Mattia Cielo 'Universo Expandable Bracelet' features 7.24 carats of round brilliant-cut pink sapphires set in 18k blackened gold. The bangle is designed as an expandable, metal-spring narrow bracelet, fits a 6 inch wrist, and measures 3.7mm wide. Total item weight is 19.2 grams. Mattia Cielo designs avant-garde, highly technological and innovative jewelry.