Multi Color Chalcedony Plain Hearts measure approximately 7x7mm to 10x10mm in size. These rich Chalcedony gems have a vitreous luster on a translucent body, have a symmetrical heart shape and have been color treated with strong, vibrant hues. There are also a few untreated beads that have a natural cream color. The beads exhibit an internal billow of light giving each bead depth.