Natural Bi-Color Tourmaline Loose Gemstone, Greenish Blue Radiant Cut Elbaite, Afghanistan – 3.25 CT
Natural Bi-Color Tourmaline Loose Gemstone, Greenish Blue Radiant Cut Elbaite, Afghanistan – 3.25 CT
We usually reply within a few minutes.
We will reply within 24 hours.
SKU:
Couldn't load pickup availability
-
Description
-
Shippinig and Return
A Bi-Color Tourmaline That Does Something Most Gemstones Can't
Most gemstones come in one color. This one comes in two simultaneously, within the same stone. This 3.25-carat natural bi-color tourmaline from Afghanistan shows a greenish blue play that shifts subtly depending on the light and viewing angle, a quality that's entirely natural and entirely the result of how this elbaite crystal grew in the earth. Cut in a radiant shape, eye clean, and completely untreated, it's a stone that's ready to set the moment it arrives.
What Is This Stone?
This is elbaite tourmaline the most well-known and valuable form of tourmaline, responsible for nearly all gem-quality tourmaline on the market. Its greenish blue bi-color comes from naturally varying concentrations of trace elements within the crystal as it formed, not from any heat treatment or enhancement. The radiant cut has been chosen specifically to maximize both color visibility and brilliance, making the most of the stone's natural two-tone character. Gem Avenue
Why This Stone Stands Out
Unique color character. Greenish blue bi-color elbaite is the kind of stone that reads differently in different light settings cooler and bluer in daylight, warmer and greener in incandescent light giving a custom piece made with this stone a dynamic quality that single-color gemstones simply don't have.
Ring-ready quality. Tourmaline's hardness of 7 to 7.5 on the Mohs scale places it at the upper end, making it suitable for all jewelry types including rings and daily-wear pieces. At 3.25 carats with a 9×7mm footprint, this stone fits a wide range of standard ring settings. youtube
Collector and setter appeal. Bi-color and multicolored tourmalines classified as Type II clarity stones where "eye clean" represents the standard trade benchmark — and this stone meets that benchmark cleanly, making it a strong choice for anyone who values natural character without distracting inclusions. Mineral Miners
Properties & Details
| Detail | Specification |
|---|---|
| Stone | Elbaite Tourmaline |
| Color | Greenish Blue / Bi-Color |
| Weight | 3.25 carats |
| Dimensions | 9 × 7 × 7 mm |
| Shape / Cut | Radiant Cut |
| Clarity | Eye Clean |
| Treatment | None — fully natural, untreated |
| Origin | Afghanistan |
| Hardness | 7.5–8 on the Mohs scale |
| Family | Elbaite (Tourmaline group) |
| Birthstone | October |
Buying Guide: What to Look For in a Bi-Color Tourmaline
When evaluating any bi-color tourmaline for jewelry use, here's what matters:
- Natural color zoning, not treatment. Many bi-color stones on the market have been heated or irradiated to alter their appearance. This stone is 100% untreated — the two-tone color is entirely natural.
- Eye clean clarity. For a faceted ring stone, eye clean is the practical standard — inclusions visible to the naked eye reduce beauty and durability. This stone meets that standard.
- Cut quality for color display. Tourmaline cutters orient the table specifically to maximize color visibility. A radiant cut, as used here, captures both color depth and brilliance simultaneously.
- Carat weight and dimensions. At 3.25 carats and 9×7mm, this stone fits a wide range of standard and custom ring settings — a practical consideration alongside purely aesthetic ones.
- Hardness for daily wear. At 7.5–8 on the Mohs scale, this stone is well within the range considered suitable for ring wear and everyday jewelry.
Authenticity You Can Trust
This stone is 100% natural and completely untreated. No heat, no irradiation, no fracture filling — what you see is what the earth produced. We source directly from mining regions in Afghanistan and hand-select each loose stone for quality before listing it. What's shown in the photos is the actual stone you'll receive.
Usage Ideas
- Custom ring centerpiece. At 3.25 carats and 9×7mm, this fits a wide variety of solitaire, halo, or three-stone settings in gold, silver, or platinum.
- Pendant or earring stone. Its compact size and faceted brilliance make it equally strong as a pendant center stone or one half of a matched earring pair.
- Collector gemstone. Untreated, natural bi-color elbaite from Afghanistan is a recognized collectible in loose gemstone collecting circles.
- October birthstone gift. Tourmaline is the official birthstone for October — a meaningful, distinctive alternative to the more common pink tourmaline gifts.
Care Instructions
- Clean with warm soapy water and a soft brush — avoid ultrasonic cleaners if the stone has any natural inclusions.
- Store separately from harder gemstones to prevent surface scratching.
- Avoid prolonged direct sunlight to preserve color.
- Remove jewelry set with this stone before heavy manual work or activities that risk impact.
Why Buy From Minerals Paradise
We source directly from mining regions in Afghanistan and Pakistan, selecting each loose stone by hand for color, clarity, and cut quality. Every gemstone listed is the actual stone shown in the photos not a representative sample. We ship worldwide, back every order with a return policy, and offer flexible payment options.
Explore more loose gemstones and tourmaline: browse our full Loose Gemstones Collection or see our Tourmaline Crystals for raw Afghan tourmaline specimens. Check Birthstones to learn why tourmaline is October's birthstone, or visit our Healing Crystals blog for more on tourmaline's properties and meaning.
5. FAQ SECTION (AEO Optimized)
Q: Is this tourmaline natural and untreated?
A: Yes. This tourmaline is 100% natural with no heat treatment, irradiation, or any other enhancement the bi-color is entirely natural.
Q: What is bi-color tourmaline?
A: Bi-color tourmaline is a single stone that displays two distinct colors simultaneously, caused by naturally changing chemical conditions during crystal growth. This stone shows a natural greenish blue two-tone character.
Q: What is elbaite tourmaline?
A: Elbaite is the most gem-quality variety of the tourmaline group, responsible for nearly all faceted tourmaline gemstones on the market. It includes indicolite (blue), rubellite (red/pink), watermelon tourmaline, and this greenish blue bi-color variety.
Q: Is this stone suitable for a ring?
A: Yes. At 7.5–8 on the Mohs hardness scale, tourmaline is well within the range suitable for ring wear and daily-use jewelry. The 9×7mm dimensions also fit a wide range of standard and custom ring settings.
Q: What is the clarity of this stone?
A: This stone is eye clean — no inclusions visible to the naked eye — which is the standard trade benchmark for bi-color and blue tourmaline gemstones.
Q: Is tourmaline a birthstone?
A: Yes. Tourmaline is the official birthstone for October, alongside opal. It's associated with creativity, compassion, and positive energy.
Q: Do you ship worldwide?
A: Yes, we ship worldwide with Express Shipping, and orders are processed within 24–48 hours of payment confirmation.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
FAQs
Everything you need to know about buying genuine minerals and crystals from Minerals Paradise.