• Cadi unisex wide 18k white gold band with engraved details, black rhodium accents, and bezel-set rare blue tanzanite gemstone.
  • Cadi unisex 18k white gold wide band ring with detailed grooves and a rare blue AAA tanzanite gemstone.
  • Algerian Berber jewelry with Tanzanite Misti promise ring
  • Algerian Berber jewelry with Tanzanite Misti promise ring
  • Algerian Berber jewelry with Tanzanite Misti promise ring

AAA Tanzanite White Gold Engagement Ring

Rare gemstone ring featuring AAA tanzanite from Mt. Kilimanjaro. December birthstone promise ring celebrating transformation and new beginnings.

$1,829
$1,829
$0
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Material:
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Ring 1 size:
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Not sure? That’s fine. We confirm both sizes by email before making your rings. Order a sizer and we’ll refund it in full with your ring order.

Interior engraving (optional)

Handmade in Barcelona since 2010

Complimentary express shipping worldwide 2-5 business days after dispatch

Free worldwide express shipping

Made in 2–3 weeks 
 we confirm sizes & engraving before we start

AAA tanzanite engagement ring featuring the world's rarest blue gemstone, handcrafted to order in our Barcelona atelier. We hold no stock; each ring is made specifically for you by master artisans who shape precious metal and set the 8mm tanzanite stone entirely by hand.
Found only near Mt. Kilimanjaro, tanzanite is 1000 times rarer than diamonds, earning its title as "the one generation gemstone" with supplies expected to deplete within decades.
The filigree design measures 11mm in width and 2.5-3mm in thickness, creating a statement piece designed to become a lasting heirloom. Perfect for December birthdays, 24th anniversaries, or couples seeking a sapphire alternative with extraordinary rarity.
Available in 18K yellow gold, white gold, rose gold, or sterling silver. Personalize with metal combinations, gemstone upgrades, or engraving.
Please specify your initials or custom text in the "order note" at checkout.
Discover more jewelry made to be worn every day and remembered for years.
We offer a number of personalized ring designs. To see more examples, try our Steampunk fashion ring or our Wedding bands with birthstone.

Delivery
Free worldwide express shipping with secure door-to-door service.
Shipped via UPS, FedEx, and DHL.

Production Time
Existing designs: 2–3 weeks
Custom pieces: 3-8 weeks from design approval

Delivery Time
EU & U.S.: 2-3 business days
Worldwide: 4-5 business days (a few countries may take longer). Local taxes may apply.
For rush orders, email us for a production time estimate.

Returns & Sizing
5-day return policy on non-personalized items.
Free resizing in the first year, up to one full size, depending on the design.
Additional adjustments subject to review.
Custom pieces are final sale, except for sizing.
$85 handling fee applies. For full details on sizing adjustments, custom orders, and returns contact us: info@cadijewelry.com

EU customers have 14 days from delivery to withdraw. Return shipping is deducted from the refund; the $85 fee is not. Engraved and custom pieces and ring sets are excluded. Full details in our Refund Policy.

Width: 11mm (0.43 in)
Thickness: 2.5-3mm (0.10–0.12 in)
Gemstone: 8mm (0.31 in) Natural AAA Tanzanite
These are handmade items, therefore dimensions are approximate and customizable

18K Yellow Gold, 18K White Gold, 18K Rose Gold, Sterling Silver.
Natural Rare AAA tanzanite gemstone.

Filigree ring handcrafted in our Barcelona atelier using techniques inspired by Berber jewelry traditions from the Great Kabylia tribe of North Africa. Each piece features multiple textures and 3D layering that catches light from every angle.
Our artisans shape precious metal without molds, ensuring no two rings are identical. The seamless construction with invisible solder joints reflects master craftsmanship designed to develop character alongside your story.

Q: How do I care for my tanzanite ring?
Clean with warm soapy water and a soft brush only. Avoid ultrasonic cleaners, steam cleaning, and sudden temperature changes. Remove before gardening, gym workouts, or household cleaning. Store separately from harder gemstones to prevent scratching.

Q: Is tanzanite durable enough for daily wear?
Tanzanite ranks 6.5-7 on the Mohs scale, softer than sapphire but suitable for engagement rings with mindful wear. The bezel setting holds the stone securely and provides protection around its edges. Minor scratches can be professionally repolished without weight loss.

Q: What if my ring doesn't fit perfectly?
We offer complimentary resizing up to one full size. Beyond that, resizing is available for a small fee. Every ring is made specifically for you, and we are always here to help ensure you receive exactly what you dreamed of.

Q: Can I personalize this ring?
Choose from 18K yellow gold, white gold, rose gold, or sterling silver. Add professional engraving or upload your own handwriting for initials, dates, or meaningful words inside the band. Please specify your preferences in the "order note" at checkout.

Q: Is this ring suitable as a gift or for a proposal?
This ring is perfect for engagements, December birthday celebrations, 24th wedding anniversaries, or as a meaningful self-purchase. The rare tanzanite symbolizes transformation and new beginnings, making it ideal for milestone moments.

Q: How does tanzanite compare to sapphire?
Both display blue hues, but tanzanite offers unique trichroism with blue, violet, and burgundy flashes from different angles. Tanzanite is 1000 times rarer yet more affordable than comparable sapphires.
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AAA Tanzanite White Gold Engagement Ring
925 sterling silver

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