Category authentication

• Black Obsidian: A Volcanic Legacy of Protection and Transformation

  by Birthstones GURU Team

  • obsidian
  • back

  October 7, 2025

• Celebrating Individuality: A Guide to Diamond Birthstone Jewelry

  by Birthstones GURU Team

  • jewelry

  October 7, 2025

• Sapphire-Hued Bicone Crystals: A Legacy of Bohemian Craftsmanship

  by Birthstones GURU Team

  • sapphire
  • gem
  • real

  October 4, 2025

• Sapphire Bicone Beads: A Celebration of Color and Craftsmanship

  by Birthstones GURU Team

  • sapphire
  • real
  • beads

  October 4, 2025

• August’s Trio: Spinel, Peridot, and Sardonyx – A Birthstone Exploration

  by Birthstones GURU Team

  September 7, 2025