December birthstone jewelry is generally made of Blue Topaz. Blue Topaz supposedly will give us strength. In 2002, Tanzanite was added to the December birthstone list as an official birthstone.

If you prefer a different gemstone, there are many other wonderful choices. As you can see from the December Birthstones and the December Zodiac Stones lists below you can use Tanzanite, Turquoise, Zircon, Lapis, Onyx and many other December birth stones. Any gemstone link in those two lists will also include lore and care instructions so you can personalize your gift even more. So much variety allows you to create the look you truly want while not feeling limited to any particular gemstone.

Birthstone: Sapphire (Blue), Amethyst (Purple), Turquoise (Blue), Topaz (Blue or Yellow)
Planetary Stone: Topaz (Blue or Yellow)
Lucky Charms: Topaz (Blue or Yellow), Pearl (White)

Birthstone: Ruby (Red), Agate (Blue or Green), Garnet (Red)
Planetary Stone: Lapis Lazuli (Blue)
Lucky Charms: Ruby (Red)