December Birthstone Jewelry

December has three birthstones in the GIA guide: turquoise, tanzanite and zircon. Turquoise can be blue or green-blue; tanzanite runs from blue to violet. Zircon appears in several colors, including colorless. Those names refer to different gems, rather than three shades of the same stone.

Explore the Clover Turquoise Necklace and Sagittarius Tanzanite Zodiac Necklace, alongside the other designs above. Check each listing for its exact stones and construction. The December birthstone guide introduces all three stones.

The Clover necklace has a four-leaf silhouette with turquoise beneath a clear crystal layer. It suits someone who enjoys blue-green pendants. Check its listed length and construction before ordering.

For a zodiac design, compare the Sagittarius Tanzanite Zodiac Necklace with the matching ring. Choose by the wearer’s taste rather than assuming everyone born in December shares the same zodiac sign. Use our size guide and check the product’s measurements and metal finish. For a timed gift, review delivery estimates and the return policy before purchase.

Keep turquoise away from cosmetics, lotions and strong heat, which can affect its appearance. Zircon can abrade if it rubs against harder materials, so store pieces separately. Turquoise and zircon do not belong in a steam or ultrasonic cleaner. These are gemstone guidelines; a finished piece may include other materials or construction that call for gentler handling.

Start with the instructions for the exact design in our jewelry care guide and ask us before trying a new cleaning method. For stone-specific advice, see GIA turquoise care and GIA zircon care.