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Boulder Opal Silver Signet Ring

Designer: RockShop

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  • This bold Boulder Opal is meant to be shown off. There is nothing more beautiful in the natural world than ironstone and opalescence in together in one ring.

    1. .925 Sterling Silver
    2. Size 6.25
    3. 3.5mm Band Width
    4. 8.1mm x 9.5mm Boulder Opal 3.31ct

    Do you need a different size?  We offer complimentary resizing. During checkout simply specify your desired size. We will resize the ring and ship within 7-10 business days.


    Opal is an October birthstone and the 14 year wedding anniversary stone.

      MINERAL: Hydrated Silica
      CHEMISTRY: SiO2•nH2O
      COLOR: All colors
      REFRACTIVE INDEX: 1.37-1.47
      SPECIFIC GRAVITY: 2.15 (+0.08, -0.90)
      MOHS HARDNESS: 5 to 6.5
  • If you need additional information regarding any of our gems or stones please contact us at: