"I am passionate about blue Peruvian Opals, such gorgeous shades of blue and their luminosity is so appealing! This 18 inches necklace is crafted in shades of blue and and olive green with .925 Sterling Silver accents. There are 4 blue Peruvian opal \"slices\" and 6 faceted blue opals in the design. They joined by blue turquoise 4 mm discs, lapis lazuli and natural olive green turquoise beads. Sterling Silver chain and Infinity-shaped lobster clasp."