Miraculous medals with Swarovski Crystals and Ziron Crystals. Miraculous Medal is also known as the Medal of the Immaculate Conception, this medal was originated by St. Catherine Labouré following her vision of the Blessed Virgin Mary in 1830. Wearing the medal with faith and devotion reminds us of the love and protection that Our Lady offers to all of God’s children. Catholic Miraculous Medals are available in sterling silver, silver-filled, pewter, gold-filled, 14kt gold, and 18kt gold. All religious jewelry are made in the USA and Italy by Bliss Manufacture, Creed Jewelry, HMH Religious, Jeweled Cross, McVan Inc., and Singer Company.