




- Ethically Produced
- Conflict Free
- Over 250,000 Happy Customers
- Ethically Produced
- Conflict Free
- Over 250,000 Happy Customers
- Ethically Produced
- Conflict Free
- Over 250,000 Happy Customers
The Thalassia Tanzanite Ring
The 18K Solid White Gold Oval Tanzanite & Diamond Halo Ring
Experience a gemstone that lives and breathes with the light. This breathtaking ring features a vividly saturated, natural tanzanite center stone that shifts effortlessly from deep sapphire blue in the midday sun to a rich, royal violet by candlelight. A million years in the making, this rare gem was earth-mined from the foothills of Mount Kilimanjaro—the only place on the planet where tanzanite is found.
To honor a stone of this magnitude, our master jewelers have micro-engineered a setting of uncompromising luxury. The substantial 6x8mm oval tanzanite is securely cradled in 18K solid white gold, surrounded by a scintillating halo of natural, earth-mined diamonds (0.174 CTW). The brilliant diamond frame not only amplifies the tanzanite’s perceived size but creates a striking contrast against the stone's deep indigo core. Set on a refined 1.7mm band, the architecture of this ring ensures maximum light return while providing effortless, everyday comfort.
Because true craftsmanship cannot be rushed, your ring is crafted to order specifically for you. Please allow 15 days for our artisans to cast, set, and polish your piece to perfection. It arrives in our signature presentation box, complete with an independent gemological certificate guaranteeing the natural origin and exceptional quality of your stone. Whether you are seeking the ultimate December birthstone or a profound milestone gift, this heirloom-quality piece is designed to last a lifetime.
- Center Stone: Guaranteed Natural Tanzanite (6x8mm, Oval Cut)
- Accent Stones: Natural Earth-Mined Diamonds (0.174 CTW)
- Material: 18K Solid White Gold
- Band Width: 1.7mm micro-engineered for daily wear
- Treatment: Gently heat-treated to complete the Earth's natural metamorphic process
- Authenticity: Independent Gemological Certificate Included
- Production: Hand-crafted to order (Approx. 15 days)
- Guarantee: Awareness Avenue Lifetime Warranty
Premium Material
Materials
We tell you exactly what your jewelry is made of, no vague "silver" labels, no base metal hiding under a gold tone, no glass sold as a gemstone. This collection is offered in clearly defined material tiers, so you can choose your level of everyday luxury with complete confidence.
Solid S925 Sterling Silver: Cast from solid 925 sterling silver with no brass, no nickel, no mystery alloy, and finished with a bright rhodium polish for lasting shine and tarnish resistance. Naturally hypoallergenic and built for a lifetime of wear, this is our heirloom tier and the setting most pieces ship in.
Solid Gold Upgrade (10K, 14K, 18K): Most styles can be crafted in genuine solid 10K, 14K, or 18K gold. This is real solid gold throughout, not vermeil and not plating. Every solid-gold order includes an automatic upgrade for the accent stones and ships with a complimentary branded LED gift box.
Accent Stones: Our sterling-silver pieces are set with natural zircon accents, a real earth-formed gemstone prized for its brilliance, not cubic zirconia. On solid-gold orders the accents are automatically upgraded, with the exact upgrade noted on each individual product.
The Stone: Natural Tanzanite, earth-mined from the Merelani Hills of Tanzania near Mount Kilimanjaro, the only place on the planet where tanzanite is found. It is pleochroic, which means it shifts between deep sapphire blue and rich violet as the light changes. Tanzanite sits at 6.5 to 7 on the Mohs hardness scale and has a natural cleavage plane, so it rewards mindful wear. In keeping with our commitment to radical transparency: tanzanite is gently heat-treated, a universal and stable industry process that completes the earth’s natural work and brings out its signature blue-violet color. It remains genuine, natural, earth-formed tanzanite. Each stone carries its own subtle character, so no two pieces are exactly alike.
The Natural Tanzanite Collection
Tanzanite is one of the rarest gemstones on Earth, found in a single small deposit in Tanzania and nowhere else. We built this collection to make that rarity wearable, honestly priced, and backed by full material transparency.
Each piece pairs genuine, natural tanzanite, hand-set to protect its cleavage plane, with solid S925 sterling silver finished in bright rhodium, and the option to upgrade most styles to solid 10K, 14K, or 18K gold. Every stone is chosen for vivid color and that signature blue-to-violet shift, then set for a lifetime of occasion wear.
You receive the depth and meaning of a truly rare gemstone, crafted with radical material honesty and backed by our legendary customer care, without the gallery markup. It is a wearable piece of finite natural history for the person who values authenticity, transparency, and a stone with a real story.
Size & Fit
Chains & Necklaces
Lengths vary by style. Check the individual product page for its exact measurement. To gauge your fit, measure a chain you already wear comfortably, or wrap a soft tape around your neck and add a couple of inches depending on where you want it to sit. A shorter drop sits at the collarbone; a longer drop falls mid-chest and layers beautifully.
Bracelets
Most bracelets list a base length with an extender on the product page. Measure your wrist just below the wrist bone and add about half an inch for a comfortable fit.
Rings, Made to Your Size (US 4 to 12)
Our tanzanite rings are crafted to order in your exact US ring size, anywhere from 4 to 12. These are fixed-size rings, not adjustable bands, so each one is set and finished specifically for you. If you are unsure of your size, a quick measure at any jeweler does the trick.
Caring for Natural Tanzanite
Tanzanite sits at Mohs 6.5 to 7 and has a natural cleavage plane, so a little mindful care keeps it brilliant for years. It is perfect for earrings, necklaces, and occasion-wear rings rather than rough daily abuse. Avoid hard knocks, and never use ultrasonic or steam cleaners, which can damage the stone. Keep it away from perfume, lotion, and household chemicals. To clean, gently wipe with a soft, damp cloth and store separately so harder stones don’t scratch the surface.
Made to Order
Most pieces are crafted to order in roughly 15 days, set and finished by hand specifically for you.
Find Your Ring Size
Finding Your Ring Size.
- Cut a strip of paper or a piece of string. Wrap the paper or string around the finger to be sized.
- Slide the paper or string up to the knuckle, as the ring must be sized large enough to able to slip off and on, over the knuckle.
- Mark the intersection point of string. Make sure to mark both points of the string.
- Place the paper or string next to a ruler and write down your measurement.
- Locate your ring size by locating your measurement on the size chart.
If the measurement falls in between two sizes, it is recommended that you choose the larger size. Your fingers might also swell if you're pregnant or taking certain medications. Take this into account when measuring your fingers
Finding the Ring Size for Your Loved Ones.
- Find a ring that your loved one currently wears.
- Make sure he or she wears that ring on the finger you are shopping for.
- Using a ruler to measure the inside diameter or inside circumference of the ring.
- Match your measurement with our size chart to find your perfect fitting size!
If the measurement falls in between two sizes, it is recommended that you choose the larger size.
Ring Size Chart
| US Size | UK Size | AU Size | CA Size | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|---|
| 3 | F | F | 3 | 14.1 | 44.2 |
| 3.5 | G | G | 3.5 | 14.5 | 45.5 |
| 4 | H | H | 4 | 14.9 | 46.8 |
| 4.5 | I | I | 4.5 | 15.3 | 48 |
| 5 | J | J | 5 | 15.7 | 49.3 |
| 5.5 | K | K | 5.5 | 16.1 | 50.6 |
| 6 | L | L | 6 | 16.5 | 51.9 |
| 6.5 | M | M | 6.5 | 16.9 | 53.1 |
| 7 | N | N | 7 | 17.3 | 54.4 |
| 7.5 | O | O | 7.5 | 17.7 | 55.7 |
| 8 | P | P | 8 | 18.1 | 57 |
| 8.5 | Q | Q | 8.5 | 18.5 | 58.3 |
| 9 | R | R | 9 | 19 | 59.5 |
| 9.5 | S | S | 9.5 | 19.4 | 60.8 |
| 10 | T | T | 10 | 19.8 | 62.1 |
| 10.5 | U | U | 10.5 | 20.2 | 63.4 |
| 11 | V | V | 11 | 20.6 | 64.6 |
| 11.5 | W | W | 11.5 | 21 | 65.9 |
| 12 | X | X | 12 | 21.4 | 67.2 |
| 12.5 | Y | Y | 12.5 | 21.8 | 68.4 |
| 13 | Z | Z | 13 | 22.2 | 69.7 |
Lifetime Warranty
We stand behind the quality and craftsmanship of our jewelry with our lifetime warranty.
What does that mean? That means if for any reason your jewelry does not meet quality expectations as a result of manufacturing defects; we will replace it for free - we won't even ask you to return the defective piece.
Our promise of "Ethical Jewelry, Guaranteed for Life" means every piece is crafted to be a lasting symbol of beauty and integrity.
We want you to feel confident that your jewelry will remain as stunning as the day you first wore it, now and for years to come.
Need Help?
support@awareness-avenue.com
Got a custom request?
We are able to accomodate mostly anything you dream of when it comes to your jewelry. Let us know what you need at support@awareness-avenue.com and we'll get back you!
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- Ethically Produced
- Conflict Free
- Over 250,000 Happy Customers
- Ethically Produced
- Conflict Free
- Over 250,000 Happy Customers
- Ethically Produced
- Conflict Free
- Over 250,000 Happy Customers
The Thalassia Tanzanite Ring
Frequently Asked Questions
Yes. Every piece uses genuine, natural, earth-mined tanzanite from the Merelani Hills of Tanzania, the only place on Earth this stone is found. This is a real gemstone with natural color and that signature blue-to-violet shift, not glass, not a synthetic imitation.
In the spirit of radical transparency, here is the honest truth about treatment. Natural tanzanite is gently heat-treated, a universal, decades-old industry process applied to essentially all tanzanite on the market. A low, controlled heat completes the earth’s natural work and brings out the vivid blue-violet color. This does not make it any less real: it is still genuine, natural tanzanite from the ground, simply revealed at its best.
Tanzanite sits at 6.5 to 7 on the Mohs hardness scale and has a natural cleavage plane, so we treat it with intentional care rather than calling it indestructible (no honest jeweler would). It is beautifully suited to earrings, necklaces, and occasion-wear rings, and it rewards a little mindfulness.
Avoid hard knocks against surfaces, and keep the stone away from perfume, lotion, and household chemicals. Never use ultrasonic or steam cleaners, which can harm the stone. To clean, simply wipe gently with a soft, damp cloth and store your piece separately so harder stones don’t scratch it. Worn with that bit of care, your tanzanite holds its brilliance for a lifetime.
It will be beautifully close, with one wonderful characteristic to expect. Tanzanite is pleochroic, which means it naturally shows different colors as the light and angle change, shifting from deep sapphire blue to rich violet. So your stone will look slightly different across daylight, indoor light, and candlelight, and that is exactly what a genuine tanzanite is supposed to do.
Each image is color-calibrated against an actual stone. Because tanzanite is natural and earth-mined, every stone has its own subtle character, so yours will be one-of-a-kind rather than an identical copy. That living color shift is the signature of a real gem and the very thing an imitation can never offer.
Intelligent luxury, not a catch, and you choose your tier. Solid S925 sterling silver finished in bright rhodium for a hypoallergenic, everyday heirloom piece, or a genuine solid gold upgrade in 10K, 14K, or 18K for those marking something special. Real stone, real metal, at every tier.
By designing in-house and selling directly to you, sourcing our natural tanzanite without the traditional gallery middlemen, we skip the heavy retail markup while keeping the artisan-level details: hand-set stones, precise millimeter cuts, and protective settings. You pay for the genuine gemstone and the real metal, never an inflated markup.
No. "Green skin" comes from cheap base metals like brass and copper reacting with sweat, and we don’t use them. Our solid S925 sterling silver is nickel-free, lead-free, and naturally hypoallergenic, and it is finished with a bright rhodium polish that adds extra shine and tarnish resistance. Our solid gold upgrades are genuine gold throughout. At no tier is there a mystery alloy against your skin.
Solid sterling may develop a soft natural patina over time, which many wearers love, and a quick pass with a polishing cloth brings back its shine in seconds. To protect both the metal and your tanzanite, keep your pieces dry, away from perfume and lotion, and store them in a soft pouch.
Yes. Every order ships in our signature premium Awareness Avenue presentation box with a dedicated Tanzanite Care Card, ready to gift, or to unwrap as a well-earned treat for yourself.
Tanzanite is the December birthstone and the modern gemstone for a 24th wedding anniversary, and as one of the rarest gems on Earth it carries a real sense of occasion. Backed by our hassle-free 30-day returns, it is a gift you can give with complete confidence. Don’t wait for a special occasion, treat yourself, or someone you love, today.
Featured Customer Reviews
What our customers say...
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We're proud to say we've served over 250,000 (and counting) customers since 2016. Smart couples are choosing Awareness Avenue fine jewelry everyday. Will you?
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What an AMAZING COMPANY!!!
"It is such a pleasure to shop with someone that actually cares, respects and values their customer. I brought a gift, it was the wrong size. They acted so quickly to make my gift perfect even with me making tge mistake of ordering the wrong size. That is a company that cares about their customers!! The Best thing is their product is as beautiful as the picture and Very high quality. I am a customer for life❤️"
Susan.
★★★★★
Beyond My Expectations...
"My experience with Awareness Avenue has been beyond my expectations. Truly an amazing company. Such a pleasure to work with."
Chele W.
★★★★★
Customer For Life...
"I had an issue with my order, not only did i get to keep it, but i also was able to place a new order without any additional expense to me. I did not expect it. I was very amazed and i know i will be a customer for life."
Ania L.
★★★★★
I've Had So Many Compliments...
"I’ve had so many compliments on my ring. I love it, the quality after a few months of rough-&-tough wearing it so far have held up superior. Company was great on notification & correcting the issue when I ordered the wrong size."
Wendy N.
★★★★★
I bought a best friend bracelet for her bday...
"I bought a best friend bracelet for her bday and she loved it. It is great workmanship, delivered on time and my whole experience has been a positive one. Usually, I am skeptical of ordering because it's never like you see in the picture but this exceeded my expectation and I look forward to buying other jewelry from them."
Maria K.
★★★★★
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