☉ Metal Type: 925 Sterling Silver ☉ Metal Stamp or Hallmark: .925 ☉ Metal Purity: 92.5% Sterling ☉ Pendant Length: 12.6mm(0.49 inch) ☉ Gemstone: Lab Created Blue Opal ☉Gemstone Creation Method: Lab Created ☉ Style: Lab Created Blue Opal Whale Tail Pendant ☉ Occasions: office, engagement, celebrations and parties. Celebrate the spirit of the ocean with this lab created blue opal whale tail pendant necklace, crafted in oxidized vintage-style filigree 925 sterling silver. Measuring 12.6mm, it symbolizes freedom, harmony and strength, with the shimmering blue opal reflecting the serene beauty of the sea a perfect blend of elegance and meaning.