These aquamarine walk the line between blue and green. Depending on how the light reflects and the color string you use will determine which way they go. These are nice, faceted chunks with some clouds and some light brown or tan veining. They would make up beautifully into a dramatic necklace or bracelet. The beads range in size from 12 to 20 mm long and average 15 mm wide. Each strand is 16 inches long and contains approximately 20 beads.