Abstract Square 20mm (approximately) featuring an interior of colored glass with aventurina and 24kt gold foil and silver foil submerged beneath crystal clear Moretti glass. The avventurina gives it added sparkle. One side has a splash of silver foil, the other has the gold foil. These are great for necklaces or for bracelets and earrings. The color of this one is clear Murano Glass is transparent bluino (blue)and the hole size is approximately 1mm.