Modern vs. Traditional The list of traditional or ancient birthstones most well-known in the United States actually originated in Poland between the 16th and 18th centuries. In 1912, the National Association of Jewelers released a list of so-called “modern birthstones.” Month Modern Traditional ----- ---------- ----------- DEC Blue Zircon Turquoise Blue Topaz Lapis Lazuli Tanzanite NOV Golden Topaz Topaz Citrine OCT Tourmaline Opal SEP Sapphire Sapphire AUG Peridot Sardonyx Spinel JUL Ruby Ruby JUN Alexandrite Pearl MAY Emerald Emerald APR Diamond Diamond MAR Aquamarine Bloodstone FEB Amethyst Amethyst JAN Garnet Garnet |