The Gemstone Library

What Gemstone is December? The Cool Brilliance of Turquoise, Tanzanite, and Zircon

If your birthday falls in December, you are lucky enough to have three dazzling birthstones to choose from - Turquoise, Tanzanite, and Zircon. Each gem offers its own kind of winter magic, from the tranquil blues of Turquoise to the vibrant violet flashes of Tanzanite and the diamond-like sparkle of Zircon.

Turquoise-blue polished stone, violet-blue gemstone and clear faceted stone illustrating December birthstones

If your birthday falls in December, you are lucky enough to have three dazzling birthstones to choose from - Turquoise, Tanzanite, and Zircon. Each gem offers its own kind of winter magic, from the tranquil blues of Turquoise to the vibrant violet flashes of Tanzanite and the diamond-like sparkle of Zircon. Together, they reflect the crisp, clear beauty of the season and the optimism that comes with year’s end.

Turquoise: The Ancient Sky Stone

Turquoise is one of the world’s oldest known gemstones. Its history stretches back more than 5,000 years, prized by civilizations from ancient Egypt to Persia, China, and Native America. Pharaohs adorned their jewelry with Turquoise for protection and divine favor, while warriors carried it as a symbol of courage.

Its sky-blue tone has long been seen as a link between heaven and earth, bringing peace, good fortune, and spiritual grounding. In many cultures, Turquoise is also believed to protect against negative energy and promote healing. Its naturally calming color makes it a favorite for those seeking balance and serenity in their lives.

In jewelry, Turquoise shines in both rustic and modern styles - from classic Southwestern designs set in silver to minimalist gold pendants that highlight its natural texture. Each stone is unique, often veined with a matrix of brown or black patterns that tell its geological story.

Tanzanite: The Modern Marvel

Tanzanite is a relative newcomer to the gemstone world, discovered in Tanzania in 1967. Found only in a small region near Mount Kilimanjaro, its exclusive origin makes it one of the most treasured modern gems. Tanzanite’s color is breathtaking - a shifting blend of blue, violet, and hints of burgundy that change under different lighting.

Because of its discovery’s timing and rarity, Tanzanite is often called the “gemstone of transformation.” It symbolizes new beginnings, intuition, and enlightenment. Its serene energy makes it a wonderful stone for reflection and personal growth - a fitting choice for the closing month of the year.

Designers love Tanzanite for its contemporary feel. Whether set in a simple solitaire pendant or surrounded by diamonds, its color demands attention without overwhelming the wearer. It pairs beautifully with white gold and platinum, enhancing its cool tones and luxurious glow.

Zircon: The Timeless Spark

Often mistaken for synthetic stones, Zircon is actually one of Earth’s oldest natural minerals - dating back over 4 billion years. When properly cut, it displays extraordinary brilliance and fire, often rivaling diamonds in sparkle.

Blue Zircon, the December variety, is associated with wisdom, mental clarity, and prosperity. Its bright tone reflects winter skies and frosty mornings, bringing a sense of light and focus. Beyond blue, Zircon also comes in golden, red, and clear varieties, making it one of the most versatile gemstones available.

Despite its brilliance, Zircon remains one of the most underrated stones in jewelry. It’s perfect for those who appreciate understated luxury and ancient beauty.

Caring for December’s Gems

Each of these gemstones deserves gentle care.

For Turquoise: Avoid perfumes, lotions, and prolonged water exposure, as it is porous and can absorb chemicals.

For Tanzanite: Clean with warm water and mild soap, avoiding ultrasonic cleaners. It’s softer than sapphire, so store it separately.

For Zircon: Although relatively durable, it can chip under impact. Handle carefully and store in a soft pouch.

With regular cleaning and thoughtful care, each of these December gems will maintain its color and brilliance for many years.

The Winter Light of December

December’s gemstones bring brightness to the year’s coldest days. Turquoise grounds the spirit with calm strength, Tanzanite inspires transformation, and Zircon reflects pure brilliance. Each offers a different kind of beauty - one earthy, one ethereal, one radiant - yet all share the same message of renewal and clarity.

They remind us that even in the stillness of winter, light continues to shine.

The Aureus edit

Pieces worth discovering.

A curated selection from designers around the world.

beaded-turquoise-bracelet-in-18k-yellow-gold

CATHERINE MARCHE

Beaded Turquoise Bracelet in 18k Yellow Gold

$394.95

1 4/5ct TW Tanzanite and 1/10ct TW Diamond Infinity Stackable Bridal Ring Set in Sterling Silver

MIMI & MAX

1 4/5ct TW Tanzanite and 1/10ct TW Diamond Infinity Stackable Bridal Ring Set in Sterling Silver

$232.00

flower-power-blue-zircon-necklace

JANE BARTEL

Flower Power Blue Zircon Necklace

$3,500.00

large-jubilation-studs

EMILY KUVIN

Large Jubilation Studs - Diamonds, Turquoise and Lapis

$8,000.00

315-ct-tgw-tanzanite-and-diamond-ring

SHANE CO.

3.15 CT TGW Tanzanite and Diamond Ring

$14,217.00

mini-14k-gold-blue-zircon-necklace

JANE BARTEL

Mini 14k Gold Blue Zircon Necklace

$1,800.00

bohemian-turquoise-circle-earrings

AYSE RODOSLU

Bohemian Turquoise Circle Earrings

$591.95

turquoise-wave-ring-daisy-london

DAISY LONDON

Turquoise Wave Ring

$63.00

Amethyst & Tanzanite Pendant Necklace in 14K Rose Gold, 18' - Exclusive

BLOOMINGDALE'S FINE COLLECTION

Amethyst & Tanzanite Pendant Necklace in 14K Rose Gold, 18' - Exclusive

$2,050.00

onyx-eco-coral-paste-turquoise-earrings

ROSSELLA UGOLINI

Onyx Eco Coral Paste Turquoise Earrings

$789.95

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