COL-OPAW-03 Origin: Ethiopia Grade: AA *** Unique Piece *** Dimensions: 40-45cm Weight: Approximately 16.85g Origin: Ethiopia Grade: AA = very high Magnificent necklace composed of Ethiopian opal beads approximately 3-4mm 925 silver clasp. Delivered in a jewelry box Unique piece = you receive the model in the photo Ethiopian Welo opal jewelry is made of spectacular opal that displays magnificent fire patterns and excellent color play. Ethiopian opals are a variety of hydrated amorphous silica. The fascinating color play and hydrophane properties of this impressive gemstone have quickly made it popular among jewelers as well as gemstone enthusiasts.