Blue lace agate stone, semi precious stone, transparent, pale sky blue with banded with brighter blue, white or even brown threads of color. Slight color variation variegated stones. Natural stone, oval, stone, flat back, cabochon, smooth, polished, light blue bands in a lacy or wavy pattern. Measuring 40 x 30mm. Will fit in many of our 40 x 30mm mounts. The color is very delicate and will look good on many skin tones. No two stones are alike. Sold by the piece.