BIRTH STONES AND THEIR SIGNIFICANCE January Garnet Constancy February Amethyst Sincerity March Bloodstone or Aquamarine Courage April Diamond Innocence May Emerald Happiness June Pearl or Moonstone Purity or Long Life July Ruby Friendship August Sardonyx Felicity September Sapphire Good Fortune October Opal Hope November Topaz Fidelity December Turquoise Success PRINCIPAL WEDDING ANNIVERSARIES First Paper Second Cotton Third Leather Fourth Books Fifth Wooden Sixth Iron Seventh Copper, Bronze or Brass Eighth Electrical Appliances Ninth Pottery Tenth Tin or Aluminum Eleventh Steel Twelfth Silk or Linen Thirteenth Lace Fourteenth Ivory Fifteenth Crystal Twentieth China Twenty-fifth Silver Thirtieth Pearl Thirty-fifth Coral or Jade Fortieth Ruby Forty-fifth Sapphire Fiftieth Gold Fifty-fifth Emerald Sixtieth Diamond