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Description
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Shipping and returns
A 7.80 carat oval tanzanite from Tanzania
This 7.80 carat oval tanzanite measures 14.4 x 10.2 x 6.2 mm and comes from Tanzania. Its color is blue. We list its clarity as flawless and its treatment as natural, and we send a certificate on request.
Specifications
| Detail | Information |
|---|---|
| Gemstone | Natural Tanzanite (Zoisite) |
| Weight | 7.80 CT |
| Dimensions | 14.4 x 10.2 x 6.2 mm |
| Shape and Cut | Oval |
| Color | Blue |
| Clarity | Flawless (as listed) |
| Treatment | Natural (as listed) |
| Origin | Tanzania |
| Certificate | Available on request |
Why the oval cut suits tanzanite
An oval looks larger face-up than a round stone of the same weight, which flatters a 7.80 carat gem on the hand. Tanzanite also flashes blue and violet from different angles, and that is normal for the stone. Our guide to gemstone cuts explained shows why oval and cushion cuts work best for tanzanite.
Tanzanite in brief
Tanzanite is the blue variety of the mineral zoisite. It comes from one area near Mount Kilimanjaro in Tanzania, and it is a December birthstone. For the full story, read what tanzanite is, and for other months, see our birthstone guide.
Wearing and caring for tanzanite
Tanzanite is softer than sapphire or aquamarine. Choose a protective setting for a ring, or wear the stone as a pendant or in earrings, and keep it away from hard knocks and harsh chemicals.
Compare sizes
Want a bigger oval? See our 10.61 carat tanzanite. Prefer something smaller? Look at our 6.20 carat vivid blue tanzanite. You can browse every cut stone in the Tanzanite Gems collection. This stone ships express.
Frequently Asked Questions
How big is a 7.80 carat tanzanite?
This one measures 14.4 x 10.2 x 6.2 mm.
Is this tanzanite natural?
We list it as natural. A certificate is available on request, so you can check the details before you buy.
Is tanzanite a birthstone?
Yes. Tanzanite is a December birthstone.
Returns
You can return an item within 30 days of delivery. It must be in the same condition you received it, in its original packaging. Contact us first so we can send the return address. Approved refunds go to your original payment method within 5 business days of us inspecting the return.
Shipping
Every package is trackable. We offer Economy and Express shipping, and you can combine several items in one parcel to save on shipping costs.
Duties and taxes
Customs duties and taxes are the buyer's responsibility and depend on your country's regulations.
Frequently asked questions
Straight answers about our stones, shipping and returns.
Are your crystals ethically sourced?
Yes, we take pride in offering ethically sourced crystals. We work closely with miners and source directly from mining regions to ensure responsible and transparent sourcing.
Are you direct suppliers from mines?
Yes, we are direct suppliers and source many of our specimens straight from the mines. This allows us to offer authentic, high-quality mineral specimens at competitive prices.
Are your crystals natural?
Yes, all our crystals are 100% natural mineral specimens unless clearly stated otherwise. Authenticity is our top priority.
Will I receive the exact specimen shown in the photos?
Yes, you will receive the exact same crystal specimen shown in the photos and videos. Every listing features the actual item you are purchasing — not a stock photo or a representative sample.
Do you ship worldwide?
Yes, we ship worldwide and serve collectors, resellers, and crystal lovers globally. All orders are processed and shipped within 24–48 hours after payment confirmation. We offer Economy Shipping and Express Shipping options depending on your needs.
Are customs duties and taxes included?
No, customs duties and taxes are the responsibility of the buyer and depend on your country's regulations. However, we can declare a lower value on the invoice upon request.
Do you accept returns?
Yes, we accept returns. Buyers are responsible for return shipping costs. A full refund will be issued once the item is received back in its original, undamaged condition.
Do you offer wholesale or bulk deals?
Yes, we provide wholesale options and bulk deals for serious buyers, collectors, and resellers. We also offer flexible payment plans on all items. Please contact us to arrange a plan that suits you.