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Close-up of a purple crystal with a clear background

December Birthstone

Rare, deeply saturated, and found in only one place on earth. Tanzanite's blue-violet color shifts between rich indigo and violet depending on the light, producing a stone that looks different at every hour of the day. Discovered in Tanzania in 1967 and found nowhere else on earth since, it is one of the most geologically unique gemstones used in fine birthstone jewelry. Shop December birthstone jewelry at Aquamarise® and wear the stone that belongs to the rarest corner of the mineral world.

Kite Cut Natural Tanzanite Bezel Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a kite-shaped tanzanite and diamond accents in a sleek bezel setting.
Cushion Cut Natural Tanzanite Engagement Ring in 14K White Gold (Hidden Halo) by Aquamarise Gold, featuring a vibrant cushion tanzanite and subtle hidden halo on a white gold band.
Teardrop Aquamarine & Tanzanite Ring in Sterling Silver by Aquamarise featuring pear-cut aquamarine, tanzanite, and a small clear gemstone in a minimalist sterling silver band.
Victoria Art Deco Tanzanite Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vivid oval tanzanite surrounded by tapered and round moissanite accents in a vintage-inspired design.
Esme Lab-Grown Diamond & Tanzanite Ring- 14K White Gold (IGI Certified) by Aquamarise Gold features a marquise lab-grown diamond center accented by vibrant natural tanzanite stones on a delicately sculpted white gold band, part of Solid Gold Engagement Rings, April and December Birthstone Jewelry, and Nature-Inspired Engagement Rings collections.

Esme Moissanite & Tanzanite Ring- 14K White Gold

$2,345

Unit price
per 

Vintage Natural Tanzanite Engagement Ring in 14K Solid Rose Gold by Aquamarise Gold featuring an oval violet-blue tanzanite with moissanite accents on an intricately detailed rose gold band.
Natural Tanzanite Engagement Ring in 14K White Gold by Aquamarise Gold featuring a vintage-inspired emerald cut tanzanite with delicate moissanite accents on an intricately detailed band.

Natural Tanzanite Engagement Ring in 14K White Gold

$2,295

Unit price
per 

Borealis Tanzanite & Teal Sapphire Couples Ring Set (Mountain Range) by Aquamarise, showcasing a marquise-cut tanzanite flanked by teal sapphire heart accents and delicate diamond details, part of Matching Couples' Rings and September and December Birthstone Jewelry collections.
Natural Tanzanite Chevron Ring Set in 14K White Gold (two-piece) by Aquamarise Gold featuring a marquise-cut violet-blue tanzanite gemstone framed by a chevron-shaped band adorned with sparkling white diamonds, part of Solid Gold Engagement Rings and December Birthstone collections.
Iris Oval Tanzanite Ring in 14K Rose Gold Vermeil by Aquamarise featuring an oval-cut vibrant tanzanite surrounded by a halo of sparkling simulated diamonds on a rose gold vermeil band.

Iris Oval Tanzanite Engagement Ring in 14K Solid Rose Gold

from $2,195

Unit price
per 

Kite Cut Natural Tanzanite Bezel Engagement Ring Set in 14K White Gold by Aquamarise Gold, featuring a kite-shaped tanzanite and diamond accents in a sleek bezel setting.

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Fantasy-inspired, handcrafted jewelry

Aquamarise® December birthstone jewelry features rings, necklaces, and earrings across 925 sterling silver and 14K gold vermeil with natural and lab-created tanzanite options throughout. Every piece is handcrafted using recycled metals and responsibly sourced stones with verified hardness and honest care guidance on every listing. Tanzanite sits at 6 to 7 on the Mohs hardness scale and suits protective settings for daily wear. Use the filters above to shop by product type, metal, or setting style.

Silver ring with blue gemstone surrounded by purple crystals on a light purple background

Why Choose Aquamarise® December Birthstone Jewelry?

Aquamarise® December birthstone jewelry is for buyers who want a stone with genuine geological rarity, a specific single-location origin, and a color that no other commonly used gemstone replicates in the same way.

A Color That Changes With the Light

Tanzanite's trichroic optical property means it shows different colors depending on the viewing angle and light source. Blue-violet in natural light. Deeper indigo under incandescent light. Occasionally, with flashes of burgundy in certain orientations. That color variability gives tanzanite a visual character that changes throughout the day without the dramatic color shift of alexandrite, producing a stone that rewards attention across every lighting condition the wearer encounters. The Marquise Tanzanite Ring Set in sterling silver is one example in which the marquise cut's elongated face shows the stone's blue-violet across its full surface.

Meaningful Jewelry for December Birthdays

Tanzanite carries associations with transformation, spiritual growth, and calm, which connect naturally to milestone birthday gifting and meaningful occasions. The Bezel Heart Tanzanite Pendant Necklace in sterling silver is one example of a December birthstone gift designed for daily wear, pairing the stone's blue-violet with a heart-shaped bezel setting in a minimalist profile suited to layering or wearing solo. Several December birthstone necklace and ring designs like this exist across the collection for buyers who want the gift to be worn rather than stored.

Hexagon Tanzanite Leaf Ring Set in Sterling Silver worn on hand, featuring a hexagon blue tanzanite with leaf-inspired bands by Aquamarise, from Sterling Silver Rings and December Birthstone collections.

Necklaces, Rings, and Earrings All Available

December birthstone jewelry at Aquamarise® spans every major product type rather than defaulting to pendant necklaces as the only gifting format. Ring sets, stacking bands, earrings, and pendant necklaces are all available in tanzanite across multiple price points and metals. That range means the right December birthstone piece exists for every recipient, regardless of their jewelry preferences or the occasion it is purchased for.

A Stone With Genuine Rarity

Tanzanite is found in a single mining area near Mount Kilimanjaro in Tanzania and nowhere else on earth. That geological exclusivity gives it a rarity credential that most gemstones used in fine jewelry at accessible price points do not have. For buyers who want a December birthstone piece with a genuine origin story behind the stone rather than a widely available alternative, tanzanite is the strongest choice in the collection.

Popular December Birthstone Jewelry Styles

Aquamarise® December birthstone jewelry is available across rings, necklaces, and earrings in 925 sterling silver and 14K gold vermeil. Browse by product type across Gemstone Rings, Gemstone Necklaces, and Gemstone Earrings. Shop by setting across Solitaire, Halo, Bezel, and Vintage Antique styles. Use the filters above to narrow by metal or setting style.

December Birthstone Jewelry FAQs

Explore More About December Birthstone Jewelry

Browse related collections and resources across the full Aquamarise® birthstone range. For a complete guide to every birth month stone, color, and meaning, learn more about birthstones by month in our guide.