Opal Blue Tones Engraved Bar NecklaceThis 925 sterling silver and gold vermeil bar necklace features our sustainable opal in two blue tones. The engraving on this piece was done using the highest quality of craftsmanship and traditional hand engraving techniques. Traditional bar shape jewelry have been a staple in Hawaiian jewelry for centuries. They express your lifes path. Often adorned with scroll or wave motif engraving, this indicates the changing tides that guide your way through