One 22 inch strand of red white hearts. Beads vary from 7 to 9mm.
White Hearts are typically ruby or scarlet red with a translucent white or gray core. The coloration of these popular Venetian glass beads was achieved by adding gold oxide to pink or purple glass. Initially, glass-makers were using gold oxide to produce beads in red only (possibly to imitate the popular carnelian beads traded in Africa), however this proved too expensive long-term. They decided to produce cheaper beads by creating a translucent core from untreated glass, and simply coating it with a thin layer of red colored glass. Green was used for the core until 1830, after which white and yellow glass were used.