jacinth

/ˈdʒeɪsɪnθ/
noun
  1. A reddish-orange or brownish variety of the mineral zircon, used as a gemstone.
    • She admired the warm, fiery color of the jacinth in the necklace.
    • Jacinth is sometimes called hyacinth in older texts.
    • The antique ring was set with a small jacinth stone.