December Birthstone: Blue Topaz, Tanzanite & Turquoise Complete Guide (2026)

December is one of only four months to have three official birthstones. That used to make choosing a December birthstone gift complicated. Now, once you understand what separates blue topaz from tanzanite from turquoise, the choice becomes straightforward — it depends entirely on budget, durability needs, and what the person values most.

This guide covers all three stones in full: their meanings, histories, differences, prices, and exactly how to choose between them.

What Is the December Birthstone?

December has three official birthstones, recognized by the American Gem Trade Association and Jewelers of America:

• Blue topaz — the modern December birthstone, adopted 1952. Most popular, most affordable, hardness 8.
• Tanzanite — added in 2002. Rarest of the three, found only in Tanzania. Violetish blue, hardness 6–7.
• Turquoise — the oldest December birthstone, one of the first gemstones in human history. Hardness 5–6, blue to blue-green.

A fourth stone — blue zircon — is the traditional December birthstone, pre-dating the modern list. Natural blue zircon is a completely different mineral from cubic zirconia (which is a synthetic diamond simulant). Zircon is one of the oldest minerals on Earth at 4.4 billion years old.

All four December birthstones share a blue or blue-green color palette — making December one of the most visually consistent birthstone months.

Blue Topaz: December's Most Popular Birthstone

Blue topaz is the go-to December birthstone for most jewelry — and for good reason. It's hard enough for everyday rings (Mohs 8), comes in three distinct blue shades, and is widely available at prices that make it accessible at every budget level.

The three blue topaz varieties differ significantly in shade:

• Sky blue topaz — pale, ice blue. The lightest and most delicate shade. Best in simple, minimalist settings.
• Swiss blue topaz — medium, vivid blue. The most popular variety for necklaces and rings. Bright and saturated without being dark.
• London blue topaz — deep, steely blue with slight grey-green undertones. The most expensive of the three. Dramatic and bold.

Blue topaz earns its popularity as a gift stone because it photographs beautifully, suits both silver and gold settings, and doesn't require special care beyond standard gemstone handling. At a Mohs hardness of 8, it outperforms tanzanite and turquoise in daily-wear durability.

Price range: $20–$80 for a sterling silver pendant necklace. Fine jewelry with large London blue topaz can reach $200–$500.

What blue topaz symbolizes: Clarity of thought, honest communication, and creative expression. Ancient Greeks believed topaz gave strength and protected against enemies. In the Renaissance, it was thought to cure madness and improve vision. The blue variety specifically connects to the Throat Chakra — the energy center governing communication and truth-telling.

For a full deep-dive on blue topaz meaning, healing properties, and stone quality grades, see our dedicated blue topaz meaning guide.

Tanzanite: The Rarest December Birthstone

Tanzanite is one of the rarest gemstones on Earth. It exists in a 6 km² zone at the foot of Mount Kilimanjaro in northern Tanzania — the only place on the planet where it forms. Geologists estimate the deposit will be exhausted within the next 10–20 years. No new source has been found since its discovery in 1967.

That scarcity is part of what makes tanzanite distinctive as a December birthstone. Unlike blue topaz or turquoise, you cannot substitute another location's tanzanite — there is no other location.

What makes tanzanite visually unique: It's trichroic — it shows three different colors depending on the viewing angle: blue, violet, and burgundy-red. In finished jewelry, this typically appears as a rich violetish blue that shifts slightly depending on lighting. Incandescent light (warm bulbs) brings out the violet; daylight brings out the blue.

Price range: $100–$500+ for a sterling silver pendant with a tanzanite center stone. Fine jewelry with D-block tanzanite (finest quality, blue with minimum violet) can reach $1,500 per carat or more. Budget for at least $150–$200 for a piece that shows tanzanite's characteristic color shift properly.

Durability note: Tanzanite has a Mohs hardness of 6–7 and perfect cleavage in one direction. This means it can crack under a sharp blow. It's excellent for necklaces, earrings, and occasional-wear rings — not ideal for everyday rings that get knocked against hard surfaces.

What tanzanite symbolizes: Transformation, spiritual wisdom, and higher consciousness. Many crystal traditions associate tanzanite with the Third Eye and Crown Chakras — the centers of intuition and spiritual insight. It's often given as a gift to mark major life transitions: graduation, milestone birthdays, new chapters.

For the full tanzanite story — including the Maasai herdsman discovery, quality grading by the Tanzanian government, and the real-vs-fake identification guide — read our tanzanite meaning and properties guide.

Turquoise: December's Most Ancient Birthstone

Turquoise has been in human jewelry for over 7,000 years. Egyptian pharaohs wore it. Persian emperors decorated palace walls with it. Native American tribes in the Southwest used it in ceremonial jewelry for centuries. No other December birthstone — or most birthstones, for that matter — has this kind of cross-cultural, multi-millennial track record.

The name comes from the French pierre turquoise — "Turkish stone" — because it reached Europe via Turkey from the Persian Empire, where the finest turquoise was mined (and still is). The best quality is called Persian turquoise or Nishapur turquoise, from the mines in northeastern Iran that have produced gem-quality stones for 2,000 years.

Color range: Sky blue (copper-dominant, with minimal iron) to blue-green to greenish (iron-dominant). The most prized color is an even, sky blue with no green — what the market calls "robin's egg blue" from the finest Persian mines. American Southwest turquoise (Sleeping Beauty mine, Kingman mine) tends to be a brighter, lighter blue. Chinese turquoise tends to be more green.

Price range: $20–$100+ for a sterling silver turquoise pendant. High-quality natural, untreated Persian turquoise can reach $500–$1,000+ for fine jewelry pieces. Most commercial turquoise is stabilized (resin-impregnated to improve hardness and color stability), which is standard and widely accepted.

Durability note: Turquoise has a Mohs hardness of 5–6 — softer than blue topaz and tanzanite. It's porous and can absorb oils, perfume, and water, which can alter its color over time. Store separately, remove before swimming, and clean with a dry soft cloth. Despite this, turquoise jewelry in museum collections has survived thousands of years with proper care.

What turquoise symbolizes: Protection, healing, luck, and friendship. Native American traditions often associate turquoise with sky and water — the life-giving elements. In Persian culture it was a protective talisman against evil. The Aztecs used it in warrior's shields and ceremonial masks. Today it's most commonly associated with mental clarity, emotional calm, and good fortune during travel.

For the full turquoise guide including quality grades, synthetic vs natural identification, and chakra associations, see our turquoise meaning and properties guide.

December Birthstone Comparison Table

Here's how all three December birthstones compare across the factors that matter most when choosing:

December Birthstone Meaning and Symbolism

Each December stone carries distinct symbolic meaning — and the one you choose can reflect something specific about the person you're giving it to.

Blue topaz speaks to clarity and communication. Give it to the person who expresses themselves with precision and honesty — a writer, teacher, or anyone navigating a major conversation in their life. In crystal traditions, blue topaz is associated with cutting through confusion and speaking truth.

Tanzanite symbolizes transformation and spiritual depth. It's the birthstone for people who are evolving — entering a new chapter, leaving something behind, or pursuing a path of self-understanding. The fact that it comes from one tiny place on Earth reinforces its message: some things are irreplaceable.

Turquoise is the stone of protection and connection. It's what you give to a traveler, a risk-taker, or someone who needs grounding and strength. Every ancient culture that encountered turquoise reached the same conclusion about it independently: this stone protects. That cross-cultural convergence over 7,000 years is something no other gemstone can claim.

How to Choose the Right December Birthstone

Three stones, one decision. Here's how to make it quickly:

Choose blue topaz if: Budget matters, the piece will be worn every day (hardness 8 handles rings and bracelets), or you want the cleanest, simplest blue. Sky blue topaz in a sterling silver necklace is a universally wearable gift that works for any December birthday.

Choose tanzanite if: This is a milestone gift — a significant birthday, graduation, or major life event. The price point signals the occasion's importance, and the stone's rarity makes it inherently meaningful. Anyone who collects or appreciates fine jewelry will recognize tanzanite's value immediately.

Choose turquoise if: The recipient has a bohemian, southwestern, or artistic sensibility. Or if you want to give something with genuine historical weight — a stone that humans have valued longer than written history. Turquoise also works beautifully for those who feel a connection to Native American or Persian heritage.

December Birthstone for Sagittarius vs Capricorn

December covers two zodiac signs, and each aligns differently with the available birthstones.

Sagittarius (November 22 – December 21): The archer is a traveler, philosopher, and truth-seeker. Turquoise is historically Sagittarius's stone — it's the traveler's talisman in multiple traditions. Tanzanite's transformative energy also suits Sagittarius's constant evolution. Blue topaz's connection to honest communication fits the sign's directness.

Capricorn (December 22 – January 19): The sea-goat is disciplined, ambitious, and practical. Blue topaz suits Capricorn's need for clarity and structured thinking. Tanzanite's rarity appeals to Capricorn's appreciation for quality over quantity — they'd rather have one exceptional stone than three average ones.

For the full zodiac birthstone breakdowns, see our Sagittarius birthstone guide and Capricorn birthstone guide.

December Birthstone Jewelry Gift Ideas

The safest December birthstone gift for most budgets is a blue topaz pendant necklace in sterling silver. London blue topaz in a simple bezel setting looks elevated without costing more than $50–$80. For someone who prefers bolder color, Swiss blue is more vivid and photographs better.

For a milestone birthday — 30th, 40th, or a significant occasion — tanzanite in 18K gold plating is the right choice. A violetish blue tanzanite pendant with 18K gold setting looks like a fine jewelry piece. The color-shift effect is something most people have never seen in a stone before — it makes an impression.

For someone with eclectic, artistic, or bohemian taste, turquoise in sterling silver is the most distinctive choice. A bezel-set turquoise pendant or turquoise stacking bracelet reads as intentional and personal rather than generic. Look for stones with even color and no visible plastic-resin coating on the surface.

Frequently Asked Questions

Final Thoughts: Which December Birthstone Is Right?

For most December birthdays, start with blue topaz. It's beautiful, durable, and accessible at any price point — and a well-chosen Swiss blue or London blue topaz pendant in sterling silver never looks like a budget choice.

Move to tanzanite when the occasion calls for it. A significant milestone, a piece someone will keep forever, a gift that says "I thought about this" — tanzanite earns its price by being genuinely rare. Anyone who knows jewelry will recognize it immediately.

Choose turquoise when the person you're giving to has a story. It's the stone with the longest memory of any on this list — 7,000 years of cultures reaching the same conclusion that this blue stone matters. That history doesn't go away when you buy a piece of turquoise jewelry. You're carrying it.

Written by Vaishakhi Ajmera — founder of AJLuxe, specialists in personalized sterling silver jewelry. Last updated: June 2026. | Sources: GIA December Birthstones · Jewelers of America — Birthstones · American Gem Society — December

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